Diketohydrazine derivative compounds and drugs containing the compounds as the active ingredient

ABSTRACT

The present invention relates to a diketohydrazine derivative of formula (I) and a pharmaceutically acceptable salt thereof (the symbols in the formula have the same meaning as described in the specification). 
     
       
         
         
             
             
         
       
     
     The compound of formula (I) has an inhibitory activity against cysteine protease, and it is useful for the treatment of inflammatory diseases, immune diseases, ischemic diseases, respiratory diseases, circulatory diseases, blood diseases, neuronal diseases, hepatic or biliary diseases, osseous or articular diseases, metabolic diseases, etc. And the compound has inhibitory activity against elastase and it is also useful for the treatment of COPD (chronic obstacle pulmonary diseases).

CROSS REFERENCE TO RELATED APPLICATIONS

This is a continuation application of U.S. application Ser. No.10/512,348, which is a National Stage of Application No. PCT/JP03/05252filed Apr. 24, 2003, which claims priority of Japanese PatentApplication No. 2002-123796, filed Apr. 25, 2002. The entire disclosuresof the prior applications are hereby incorporated by reference.

TECHNICAL FIELD

The present invention relates to diketohydrazine derivatives. Morespecifically, the present invention relates to

1) a diketohydrazine derivative of formula (I)

-   -   (wherein all symbols have the same meaning as described        hereafter.) and a pharmaceutically acceptable salt thereof,

2) a method for the preparation thereof and

3) a pharmaceutical composition comprising it as active ingredient.

BACKGROUND OF ART

Cysteine protease is a generic name of proteases which have a cysteineresidue in the activity center and catalyze protein degradation thereat.In animal cells, many cysteine proteases are known; for example,cathepsin family, calpain, caspase, etc. Cysteine protease exists invarious kinds of cells extensively and plays a basic and essential rolein the homeostasis, such as conversion of precursor protein into itsactive form (processing) and degradation of proteins which have becomeout of use, etc. Until now, its physiological effects are beingvigorously studied, and as the studies progress and characters of theenzymes are revealed, cysteine protease came to be taken as a cause ofreally various kinds of diseases.

It is revealed that cathepsin S (see J. Immunol., 161, 2731 (1998)),cathepsin L (see J. Exp. Med., 183, 1331 (1996)) and cathepsin F (J.Exp. Med., 191, 1177 (2000)) play a role in processing of majorhistocompatibility complex class-II in antigen presenting cells whichplay an important role in the early stage of immune responses.

In an experimental inflammatory response model induced by antigens, aspecific inhibitor of cathepsin S showed an inhibitory effect (see J.Clin. Invest., 101, 2351 (1998)). It is also reported that in aleishmania-infected immune response model a cathepsin B inhibitorcontrolled an immune response and by means of this effect it inhibitedthe proliferation of protozoans (see J. Immunol., 161, 2120 (1998)). Invitro, a result is given that a calpain inhibitor and a cysteineprotease inhibitor E-64 inhibited apoptosis which is induced by stimulion T cell receptors (see J. Exp. Med., 178, 1693 (1993)). And cathepsinW, which is expressed in CD8 T cells and NK cells specifically, is knownto increase its expression by stimuli of IL-2 by 7 times and so it isconceived that it is concerned with immune responses [J. Immunol., 167,2172 (2001)]. It is also reported that in leukemia patients, geneexpression of cathepsin C and cathepsin W increases and cytotoxic Tcells are activated [Int. J. Oncol., 22, 33 (2003)]. Therefore, it isconceivable that cysteine protease is much concerned with the progressof immune responses.

It is speculated that caspase or a similar cysteine protease theretooccupies an important position in the mechanism of cell death includingapoptosis. Therefore it is expected for a cysteine protease inhibitor tobe used as an agent for the prophylaxis and/or treatment of thosediseases concerning apoptosis, such as infectious diseases,deterioration or sthenia of immune function and brain function, ortumors etc. Diseases concerning apoptosis include, acquired immunedeficiency syndrome (AIDS), AIDS-related complex (ARC), adult T cellleukemia, hairy cell leukemia, spondylopathy, respiratory apparatusdisorder, arthritis, virus-related diseases (HIV, HTLV-1 relateddiseases (uveitis etc.) and hepatitis C etc.), cancer, collagenosis(systemic lupus erythematosus, rheumatoid arthritis, etc.), autoimmunediseases (inflammatory bowel diseases, Sjoegren syndrome, primarybiliary cirrhosis, spontaneous thrombocytopenic purpura, autoimmunehemolytic anemia, myasthenia gravis, insulin dependent (type-I)diabetes, etc.), diseases accompanied by thrombocytopenia(osteomyelodysplasia syndrome, periodic thrombocytopenia, aplasticanemia, spontaneous thrombocytopenia, disseminated intravascularcoagulation (DIC) etc.), hepatic diseases such as viral hepatitis (C, A,B, F, etc.) or hepatitis medicamentosa and cirrhosis, dementia(Alzheimer's disease, Alzheimer's senile dementia, etc.),cerebrovascular injury, nerve degeneration diseases, adult acuterespiratory distress syndrome, infectious diseases, prostatehypertrophy, hysteromyoma, bronchial asthma, arteriosclerosis, all kindsof lusus naturae, nephropathy, senile cataract, chronic fatiguesyndrome, myodystrophy, peripheral neuropathy, etc.

Moreover, caspase-1 is concerned with various inflammatory diseases andthose diseases caused by immune disorders, by means of interleukin-1β(IL-1β) production. A lot of diseases are shown to be involved withcaspase-1; for example, inflammatory bowel diseases such as ulcerativecolitis, inflammatory diseases (insulin-dependent (type-I) diabetes,autoimmune thyroid diseases, infectious diseases, rejection of an organtransplant, graft versus host diseases, psoriasis, periodontitis (above,see N. Eng. J. Med., 328, 106 (1993)), pancreatitis (see J. InterferonCytokine Res., 17, 113 (1997)), hepatitis (see J. Leuko. Biol., 58, 90(1995)), glomerulonephritis (see Kidney Int., 47, 1303 (1995)),endocarditis (see Infect. Immun., 64, 1638 (1996)), myocarditis (see Br.Hearat J., 72, 561 (1995)), systemic lupus erythematosus (see Br. J.Rheumatol., 34, 107 (1995)), Hashimoto's diseases (see Autoimmunity, 16,141 (1993)), etc.), autoimmune diseases, etc. Experimentally, it isreported that in liver injury model induced by lipopolysaccharide andD-galactosamine, a caspase-1 inhibitor improved the symptoms, and it isexpected that a caspase inhibitor shows an effect in sepsis, ischemicreperfusion and hepatitis gravis.

It is also shown that cysteine protease is concerned with rheumatoidarthritis. IL-1β is shown to be concerned with this disease (seeArthritis Rheum., 39, 1092 (1996)), and in addition, as autoantibodytoward calpastatin (endogenous calpain inhibitor) was found in the serumof the patients [Proc. Natl. Acad. Sci. USA, 92, 7267 (1995)], it isthought that increase of calpain activity leads to the cause ofdiseases. Also, it is also reported that cathepsin B and cathepsin Cactivity is increased in leukocyte of patients suffering from rheumatoidarthritis [Biol. Chem., 383, 865 (2002)]. It is reported that inexperimental arthritis model the production of inflammatory cytokine issuppressed and affection of arthritis completely in cathepsin Cknock-out mice, so it is expected that cathepsin C inhibition leads totreatment of rheumatoid arthritis [J. Clin. Invest., 109, 357 (2002)].

It is also known that cysteine protease causes a disease symptom bydecomposing various proteins which compose the organism.

It is reported that cathepsin B plays a role in decomposing muscularprotein in the chronic phase of sepsis (see J. Clin. Invest., 97, 1610(1996)), and in decomposing muscular protein in myodystrophy model (seeBiochem. J., 288, 643 (1992)). At the same time it is reported thatcalpain decomposes the myocyte cell proteins of myodystrophy patients(see J. Biol. Chem., 270, 10909 (1995)).

In ischemic reperfusion model, a result is given that calpain causesdegeneration of brain tissues by means of degradation of protein kinaseC-β (see J. Neurochem., 72, 2556 (1999)) and that a cathepsin Binhibitor inhibits nerve injury (see Eur. J. Neurosci., 10, 1723(1998)).

In the brain ischemic model, it is known that the degradation ofspectrin by calpain causes a damage and its function disorder in theneurocyte (see Brain Res., 790, 1 (1998)) and it is reported that anIL-1β receptor antagonist relieved the symptoms (see Brain Res. Bull.,29, 243 (1992)).

In myocardial ischemic model it is confirmed that cathepsin B activityincreases in the lesion (see Biochem. Med. Metab. Biol., 45, 6 (1991)).

In the experiment utilizing ischemic liver injury model, it proved thatnecrosis and apoptosis of hepatocyte were induced by means ofprotein-decomposing activity of calpain (see Gastroenterology, 116, 168(1999)).

Otherwise, it is known that calpain causes cornea turbid by means ofdegradation of crystalline (see Biol. Chem., 268, 137 (1993)) and thatin the lesion of contracted gut mucosa model it was confirmed that theactivity of cathepsin B, H and L increased (see J. Parenter. Enteral.Nutr., 19, 187 (1995)) and it is shown that cysteine protease is a causeof the diseases resulting from these protein degradation.

It has been revealed that cysteine protease is concerned with systemicdisorders of organs and tissues by shock.

It is shown that IL-1β is concerned with septic shock and systemicinflammatory response syndrome (see Igakuno ayumi, 169, 850 (1994)) andbesides, it is reported that in endotoxin shock model induced bylipopolysaccharide, a calpain inhibitor prevented circulatory systemdisorder, disorders of liver and pancreas and acidosis by means ofinhibitory effect of activation of nuclear factor κB (see Br. J.Pharmacol., 121, 695 (1997)).

Since it is reported that calpain is concerned with platelet coagulationprocess and a calpain inhibitor prevented platelet coagulation (see Am.J. Physiol., 259, C862 (1990)), it is conceivable that a cysteineprotease inhibitor is useful for the disorder of blood coagulation. Fromthe fact that calpain activity increased in the serum of the patients ofpurpura (thrombocytopenia) resulting from marrow transplantation, so itis conceivable that calpain is concerned with the actual diseasesymptoms (see Bone Marrow Transplant., 24, 641 (1999)).

Caspase-1 inhibitor suppressed apoptosis of blood vessel endothelialcells, which is seen in the early phase of purpura (thrombocytopenia)and is thought to be important for the progression of the pathologyafterwards (see Am. J. Hematol., 59, 279 (1998)), so it is expected thata cysteine protease inhibitor makes effect on purpura and hemolyticuremic syndrome.

The effect of cysteine protease and its inhibitor is being investigatedin the area of cancer and metastasis of cancer. Since the proliferationsof pancreas cancer cells (see Cancer Res., 59, 4551 (1999)) and acutemyeloid leukemia cells (see Clin. Lab. Haematol., 21, 173 (1999)) wereinhibited by a caspase-1 inhibitor or its receptor antagonist, it isexpected that caspase-1 activity is essential for the process ofproliferation of tumor cells, and that an inhibitor thereof is effectivefor these cancers. Also, from the facts that cathepsin B activityincreased in colon cancer metastasis model (see Clin. Exp. Metastasis,16, 159 (1998)), that cathepsin L activity increased in urine of bladdercancer patients (see Urology, 59, 308 (2002)), that cathepsin Zexpression was recognized in tumor cells (see J. Biol. Chem., 273, 16816(1998)), that cathepsin K protein expression recognized in human breastcancer cells proved the relationship of cathepsin K and bone metastasis(see Cancer Res., 57, 5386 (1997)), and that a calpain inhibitorsuppressed migration of the cells, which implies that calpain inhibitionmight be able to inhibit metastasis of cancer (see J. Biochem., 272,32719 (1997)), a cysteine protease inhibitor is expected to exhibit aninhibitory effect on the metastasis of various malignant tumors.

As to AIDS (AIDS, 10, 1349 (1996)) and AIDS-related complex (ARC) (Arch.Immunol. Ther. Exp. (Warsz), 41, 147 (1993)), it is implied that IL-1 isconcerned with the progress of symptoms, and so it is conceivable thatcysteine protease inhibition leads to an effective therapy of AIDS andits complication.

Some parasites have cysteine protease activity in their bodies. Cysteineprotease in the phagosome of malaria protozoan is an essential enzymefor supplying nutrition of the parasites. Its inhibitor show aninhibitory effect of the proliferation of the protozoan (see Blood, 87,4448 (1996)).

In Alzheimer-type dementia, it is said that adhesion ofnon-physiological protein called amyloid to brain is deeply involvedwith nervous function disorders. Cysteine protease has an activity ofgenerating amyloid by decomposing its precursor protein. Clinically, itis shown that cathepsin B possesses a processing activity of amyloidproteins in the brains of Alzheimer-type dementia patients (see Biochem.Biophys. Res. Commun., 177, 377 (1991)). And expressions of cathepsin Bprotein (see Virchows Arch. A. Pathol. Anat. Histpathol., 423, 185(1993)), cathepsin S protein (see Am. J. Pathol., 146, 848 (1995)) andcalpain protein (see Proc. Natl. Acad. Sci. USA, 90, 2628 (1993)) andincrease of caspase-1 activity (see J. Neuropathol. Exp. Neurol., 58,582 (1999)) were confirmed in the brain lesions. And it is implied thatcysteine protease is concerned with the disease symptoms, by the factthat calpain is concerned with the formation of paired helical filamentswhich accumulate in Alzheimer dementia patients and production ofprotein kinase C which stabilizes the protein (see J. Neurochem., 66,1539 (1996)) and by the knowledge that caspase is concerned withneurocyte death by β amyloid protein adhesion (see Exp. Cell Res., 234,507 (1997)).

As to Huntington's chorea, cathepsin H activity increased in thepatient's brain (see J. Neurol. Sci., 131, 65 (1995)), and the ratio ofactivated form of calpain (see J. Neurosci., 48, 181 (1997)) increased.In Parkinson's disease, the increase of expression of m-calpain wasrecognized in the mesencephalon in the patients (see Neuroscience, 73,979 (1996)) and IL-1β protein was expressed in brain (see Neurosci.Let., 202, 17 (1995)). Therefore, it is speculated that cysteineprotease is concerned with the genesis and progress of these diseases.

Otherwise, in the central nervous system, spectrin degradation bycalpain is found in the process of injury on neurocyte observed in thetraumatic brain injury model (see J. Neuropathol. Exp. Neurol., 58, 365(1999)).

In spinal cord injured model it was recognized that in glia cellscalpain messenger RNA increased and its activity increased in the lesionand the possibility was shown that calpain had much to do with thedegeneration of myelin and actin (see Brain Res., 816, 375 (1999)). AndIL-1β was shown to be concerned with the genesis of multiple sclerosis(see Immunol. Today, 14, 260 (1993)). Therefore, it is conceivable thata cysteine protease inhibitor is hopeful as an agent for the treatmentof these nerve-injured diseases.

Normally, cathepsin S and cathepsin K do not exist in human arterialwalls, but it was confirmed that they expressed in arteriosclerosislesion and they had an decomposing activity of alveolus elastica (see J.Clin. Invest, 102, 576 (1998)) and a calpain inhibitor and antisense ofm-calpain inhibited the proliferation of human blood vessel smoothmuscle cells and it is shown that m-calpain is concerned with theproliferation of smooth muscle (see Arterioscler. Thromb. Vssc. Biol.,18, 493 (1998)), so it is conceivable that a cysteine protease inhibitoris hopeful for the treatment of blood vessel lesion such asarteriosclerosis, restenosis after percutaneous transluminal coronaryangioplasty (PTCA) etc. And it is also reported that LDL inducescathepsin H expression in human monocyte and cathepsin H is concernedwith LDL transformation and it is implied that LDL is concerned withcirculatory disorder (arteriosclerosis) [Arterioscler. Thromb. Vasc.Biol., 27 (2003)].

It is reported that in liver, cathepsin B is activated in the process ofinjuring hepatocyte by bile acid (see J. Clin. Invest., 103, 137 (1999))and so it is expected that a cysteine protease inhibitor is useful forcholestatic cirrhosis.

It is reported that in spleen, cathepsin Y is concerned with productionof bradykinin potentiating peptide (BPP) which plays some role inconverting kinin into bradykinin [Immunopharmacology, 45, 207 (1999)].Therefore, it is expected that cathepsin Y inhibitor has anti-allergyeffect.

In lungs and respiratory system, it is shown that cathepsin S is anenzyme that plays a role in elastin degradation by alveolus macrophages(see J. Biol. Chem., 269, 11530 (1994)), so it is probable that cysteineprotease is a cause of pulmonary emphysema. In IL-13 transgenic mice inwhich COPD-like pathology is recognized, increase of cathepsin B, S, L,H and H expression is recognized and it is also reported thatadministration of a cysteine protease inhibitor suppresses lunginflammation and lung emphysema [J. Clin. Invest., 106, 1081 (2000)].And it is also shown that lung injury (see J. Clin. Invest., 97, 963(1996)), lung fibrosis (see Cytokine, 5, 57 (193)) and bronchial asthma(see J. Immunol., 149, 3078 (1992)) are caused by way of production ofIL-1β by caspase-1. It is also shown that blood cathepsin Hconcentration is increased in asthma patients, so antiasthma effect byits inhibitor is expected [Clin. Chim. Acta, 310, 113 (2001)]. It isknown that cathepsin H functions in the excision of surfactant protein Cwhich is synthesized by type-2 pneumonia cells [Am. J. Respir. Cell Mol.Biol., 26, 659 (2002)].

It is pointed out that cysteine protease is also concerned with diseasesconcerning bones and joints. Cathepsin K is specifically recognized inosteoclast and it has a decomposing activity against bone matrix [J.Biol. Chem., 271, 12517 (1996)], so its inhibitor is expected to show aneffect in osteoporosis, arthritis, rheumatoid arthritis, osteoarthritis,hypocalcaemia, osteometastasis of cancer, where pathologic boneresorption is recognized. Also, since IL-1β is shown to be concernedwith bone resorption and cartilage degradation, and a caspase-1inhibitor and IL-1β receptor antagonist inhibit the symptoms of boneresorption and arthritis, so it is expected that it is effective forarthritis (see Cytokine, 8, 377 (1996)) and osteoporosis (see J. Clin.Invest., 93, 1959 (1994)). And it is also reported that IL-1β isconcerned with osteoarthritis (see Life Sci., 41, 1187 (1987)).

Cysteine protease is involved with production of various hormones. Sinceincrease of messenger RNA of cathepsin S was recognized by stimuli ofthytropin on thyroid epitheliocyte strains (see J. Biol. Chem., 267,26038 (1992)), it is conceivable that a cysteine protease inhibitor iseffective for hyperthyroidism.

Since quantity and activity of cathepsin B protein increased in thegingival sulcus liquid of periodontitis patients [J. Clin. Periodontal.,25, 34 (1998)], it is pointed out that cysteine protease is concernedwith periodontitis.

On the other hand, serine proteases include thrombin, chymase, trypsin,chymotrypsin, urokinase, plasmin, elastase, etc. Thrombin, which isproduced in blood coagulation cascades, decomposed fibrinogen to formfibrin and activates the factor VIII. Thrombin is concerned withthrombophlebitis, thrombosis and asthma.

Pancreatic elastase is concerned with pancreatitis. Chymase is animportant enzyme in angiotensin synthesis and it is concerned withhypertension, myocardiac infarction, and coronary heart diseases.Cathepsin G is concerned with abnormal connective tissue decomposition.

Therefore, those compounds which have an inhibitory activity againstcysteine proteases, are useful as agents for the prophylaxis and/ortreatment of inflammatory diseases (periodontitis, arthritis,inflammatory bowel diseases, infectious diseases, pancreatitis,hepatitis, glomerulonephritis, endocarditis, myocarditis, ulcerativecolitis, etc.), immune diseases (diseases induced by immune responsedisorder (graft versus host diseases, rejection during transplantation,allergic diseases (asthmatic bronchitis, atopic dermatitis, allergicrhinitis, hay fever, diseases by house dust, hypersensitive pneumonia,food allergy, etc.), psoriasis, rheumatoid arthritis, etc.), autoimmunediseases (insulin dependent (type I) diabetes, systemic lupuserythematosus, Hashimoto's diseases, multiple sclerosis, etc.), acquiredimmune deficiency syndrome (AIDS, AIDS-related complex (ARC), etc.),ischemic diseases (brain ischemia, brain disorder by ischemicreperfusion, cardiac infarction, ischemic liver damage, etc.).respiratory diseases (adult acute respiratory distress syndrome, lungdisorder, fibroid lungs, decomposition of alveolus elastica (emphysemaetc.), etc.), circulatory diseases (arteriosclerosis, restenosis afterPTCA (percutaneous transluminal coronary angioplasty), hyperlipidemia,etc.), blood diseases (thrombocytopenic purpura, hemolytic uremicsyndrome, myelodysplastic syndrome, cyclic thrombocytopenia, aplasticanemia, spontaneous thrombocytopenia, disseminated intravascularcoagulation (DIC), spontaneous thrombocytopenic purpura, autoimmunehemolytic anemia, hyperlipidemia, etc.), neuronal diseases (dementiasuch as Alzheimer's disease, Alzheimer-type senile dementia,cerebrovascular injury, peripheral nerve injury, neurodegenerativedisease (Huntington's chorea, Parkinson's disease, multiple sclerosis,traumatic encephalopathy, traumatic spondylopathy, etc.), etc.), hepaticor biliary diseases (primary biliary cirrhosis, viral hepatitis (A, B,C, F, etc.) or hepatitis medicamentosa and cirrhosis, etc.), osseous orarticular diseases (osteoporosis, rheumatoid arthritis, arthritis,osteoarthritis, hypocalcaemia, osteometastasis of cancer, bone fracture,etc.), metabolic diseases (osteoporosis, rheumatoid arthritis,arthritis, osteoarthritis, hypocalcaemia, bone metastasis of cancer,endocrinesthenia (hyperthyroidism etc.), diseases induced by apoptosis(graft versus host diseases, rejection during transplantation, acquiredimmunodeficiency syndrome (AIDS), AIDS-related complex (ARC), adult Tcell leukemia, hairy cells leukemia, spondylopathy, disorders ofrespiratory apparatus, arthritis, HIV or HTLV-1 related diseases(uveitis etc.), virus related diseases (hepatitis C etc.), cancer,collagenosis (systemic lupus erythematosus, rheumatoid arthritis, etc.),Sjoegren syndrome, myasthenia gravis, autoimmune diseases (insulindependent (type I) diabetes, etc.), infectious diseases, prostatomegaly,hysteromyoma, bronchial asthma, nephritis, senile cataract, chronicfatigue syndrome, myodystrophy, etc.), diseases induced by decompositionof proteins which compose a body (myodystrophy, cataract, periodontitis,hepatocyte injury by bile acid (cholestatic cirrhosis etc.), etc., shock(septic shock, systemic inflammatory responsive syndrome, endotoxinshock, acidosis, etc.), malignant tumor, AIDS-related complex, parasiticdiseases (malaria etc.)

Further, an elastase inhibitor is useful for the treatment and/orprophylaxis of diseases resulting from hyperactivity of decomposition ofelastin, collagen fiber and/or proteoglycan by elastase in mammals,particularly in humans, for example, chronic obstructive pulmonarydiseases (COPD) such as decomposition of alveolus elastica (emphysemaetc.), rheumatoid arthritis, atherosclerosis, adult respiratory distresssyndrome (ARDS), glomerulonephritis, myocardial infarction, ulcerativecolitis, parodontitis apicalis, etc.

On the other hand, what is the most important for inhibitors ininhibiting the activity of proteases is, the special reaction site whichinteracts with the amino acid residues the activity center of proteases.The surrounding structure of the reaction sites are represented by-P3P2P1-P1′P2′P3′-, centering peptide binding (P1-P1′) of the reactionsite, and at P1 site there exist amino acid residues which fit thesubstance specificity of proteases which the inhibitors aim. Somereaction sites against cysteine proteases are known, for example, in thespecification of WO99/54317, the followings are described;

P1 position against calpain I, II—norvaline, phenylalanine, etc.P1 position against calpain I—arginine, lysine, tyrosine, valine, etc.P1 position against papain—homophenylalanine, arginine, etc.P1 position against cathepsin B—homophenylalanine, phenylalanine,tyrosine, etc.P1 position against cathepsin S—valine, norleucine, phenylalanine, etc.P1 position against cathepsin L—homophenylalanine, lysine, etc.P1 position against cathepsin K—arginine, homophenylalanine, leucine,etc.P1 position against caspase—aspartic acid, etc.

The followings are known to possess alpha amino acid-deriveddiketohydrazine skeletons.

EP1008592 discloses a compound of formula (A)

as cathepsin K inhibitor, wherein the following compound (CAS Reg. No.274684-59-2)

is disclosed specifically.

WO 99/17775 discloses a quinoline derivative of formula (B)

as cysteine protease and serine protease inhibitor, wherein thefollowing compound (CAS Reg. No. 222959-79-7)

is disclosed.

U.S. Pat. No. 6,242,494 discloses a compound of formula (C)

as methionine aminopeptidase-2 inhibitor.

Croatia Chemica Acta 1978, 51(1), 81-92 discloses that the followingcompound has anti-inflammatory activity.

DISCLOSURE OF THE INVENTION

The present inventors have energetically investigated to find out suchcompounds having cysteine protease inhibitory activity, to find out thatthe diketohydrazine derivative of formula (I) accomplishes the purpose.

It was also confirmed that the compound of formula (I) has an inhibitoryactivity against serine proteases, represented by elastase.

That is, the present invention relates to

(1) a compound of formula (I)

[wherein R is (1) hydrogen, (2) CycA, (3) C1-8 alkyl optionallysubstituted with 1 to 5 groups selected from halogen, CycA, nitro,trifluoromethyl and cyano,

(wherein CycA is a C3-15 mono-, bi- or tri-cyclic carboring or a 3-15membered mono-, bi- or tri-cyclic heteroring comprising 1-4 of nitrogen,1-2 of oxygen and/or 1-2 of sulfur;R¹⁶ is (1) C1-8 alkyl, (2) C2-8 alkenyl, (3) C2-8 alkynyl, (4) CycA or(5) C1-8 alkyl, C2-8 alkenyl or C2-8 alkynyl substituted withsubstituted with 1 to 5 groups selected from halogen, nitro,trifluoromethyl, cyano, CycA, —NR¹⁸R¹⁹, —OR¹⁸, —SR¹⁸, —NHC(O)-CycA and—NHC(O)—(C1-8 alkyl);R¹⁷, R¹⁸ and R¹⁹ are each independently, hydrogen, C1-4 alkyl, CycA,C1-4 alkyl substituted with CycA.),AA¹ is (1) a bond, or

(wherein R¹ and R² are each independently, (i) hydrogen, (ii) C1-8alkyl, (iii) CycA or (iv) C1-8 alkyl substituted with substituted with 1to 5 groups selected from the following (a) to (j):(a) —NR²¹R²² (b) —OR²³, (c) —SR²³, (d) —COR²⁴, (e) —NR²⁵C(O)NR²¹R²², (f)guanidino, (g) amidino, (h) CycA, (j) —NR²⁵SO₂R²¹; orR¹ and R² are taken together to form C2-8 alkylene (wherein one carbonof the alkylene chain may be replaced by oxygen, sulfur or —NR²⁰— andthe alkylene may be substituted with —NR²¹R²², —OR²³ or oxo.),(wherein R²⁰ is hydrogen, C1-4 alkyl, —C(O)O—(C1-4 alkyl), CycA or C1-4alkyl substituted with CycA; R²¹,R²², R²³ and R²⁵ are each independently, hydrogen, C1-4 alkyl, CycA orC1-4 alkyl substituted with CycA; R²⁴ is C1-4 alkyl, CycA, —NR²¹R²²,—OR²³, —SR²³ or C1-4 alkyl substituted with CycA.),R³ is hydrogen, C1-8 alkyl, CycA or C1-8 alkyl substituted with CycA orR³ may be taken together with R¹ to form C2-6 alkylene (wherein onecarbon of the alkylene chain may be replaced by oxygen, sulfur or —NR²⁰—and the alkylene may be substituted with —NR²¹R²², —OR²³, —SR²³ oroxo.).) orR and AA¹ may be taken together to form

(wherein CycB is a 5-12 membered mono- or bi-cyclic heteroring and theother symbols have the same meaning as hereinbefore.),AA² is (1) a bond,

(wherein R⁴ and R⁵ are each independently, (i) hydrogen, (ii) 0-8 alkyl,(iii) CycA or (iv) C1-8 alkyl substituted with 1 to 5 groups selectedfrom the following (a) to (h):(a) —NR³¹R³², (b) —OR³³, (c) —SR³³, (d) —COR³⁴, (e) —NR³⁵C(O)NR³¹R³²,(f) guanidino, (g) amidino, (h) CycA, (j) —NR³⁵SO₂R³¹; orR⁴ and R⁵ may be taken together to form C2-8 alkylene (wherein onecarbon of the alkylene chain may be replaced by oxygen, sulfur or —NR³⁰—and the alkylene may be substituted with —NR³¹R³², —OR³³, —SR³³ oroxo.),(wherein R³⁰ is hydrogen, C1-4 alkyl, —C(O)O—(C1-4 alkyl), CycA or C1-4alkyl substituted with CycA; R³¹, R³², R³³ and R³⁵ are eachindependently, hydrogen, C1-4 alkyl, CycA or C1-4 alkyl substituted withCycA; R³⁴ is C1-4 alkyl, CycA, —NR³¹R³², —OR³³, —SR³³ or C1-4 alkylsubstituted with CycA.),R⁶ is hydrogen, C1-8 alkyl, CycA or C1-8 alkyl substituted with CycA orR⁶ may be taken together with R⁴ or R to form C2-6 alkylene (wherein onecarbon of the alkylene chain may be replaced by oxygen, sulfur or —NR³⁰—and the alkylene may be substituted with NR³¹R³², OR³³, SR³³ or oxo.),R³⁸ is hydrogen, C1-4 alkyl, CycA or C1-4 alkyl substituted with CycA orwhen AA¹ is a bond, R³⁸ may be taken together with R to form C2-6alkylene (wherein one carbon of the alkylene chain may be replaced byoxygen, sulfur or —NR³⁷— (wherein R³⁷ is hydrogen or C1-4 alkyl)),CycC is a 3-17 membered mono- or bi-cyclic heteroring,CycD is a C3-14 mono- or bi-cyclic carboring or a 3-14 membered mono- orbi-cyclic heteroring) orAA² may be taken together with AA¹ to form

(wherein CycE is a 4-18 membered mono- or bi-cyclic heteroring, CycF isa 5-8 membered monocyclic heteroring, and the other symbols have thesame meaning as hereinbefore.),R⁷ and R⁸ are each independently (1) hydrogen, (2) C1-8 alkyl, (3) CycAor (4) C1-8 alkyl substituted with 1 to 5 groups selected from thefollowing (i)˜(x);(i) —NR⁴¹R⁴², (ii) —OR⁴³, (iii) —SR⁴³, (iv) —COR⁴⁴, (v)—NR⁴³C(O)NR⁴¹R⁴², (vi) guanidino, (vii) amidino, (viii) CycA, (ix)—NR⁴⁵SO₂R⁴¹, (x) —P(O)(OR⁴⁶)(OR⁴⁷), or R⁷ and R⁸ may be taken togetherto form C2-8 alkylene (wherein one carbon of the alkylene chain may bereplaced by oxygen, sulfur or —NR⁴⁰— and the alkylene may be substitutedwith —NR⁴¹R⁴², —OR⁴³, —SR⁴³ or oxo),R⁴⁰ is hydrogen, C1-4 alkyl, —C(O)O—(C1-4 alkyl), CycA or C1-4 alkylsubstituted with CycA,R⁴¹, R⁴², R⁴³ and R⁴⁵ are each independently hydrogen, C1-4 alkyl, CycAor C1-4 alkyl substituted with CycA, R⁴⁴ is C1-4 alkyl, CycA, —NR⁴¹R⁴²,—OR⁴³, —SR⁴³ or C1-4 alkyl substituted with CycA,R⁴⁶ and R⁴⁷ are each independently, hydrogen or C1-8 alkyl,R⁹ is hydrogen, C1-8 alkyl, CycA or C1-8 alkyl substituted with CycA orR⁹ may be taken together with R⁷ or R to form C2-6 alkylene (wherein onecarbon of the alkylene chain may be replaced by oxygen, sulfur or —NR⁴⁰—and the alkylene may be substituted with —NR⁴¹R⁴², —OR⁴³, —SR⁴³ or oxo),(wherein all symbols have the same meaning as hereinbefore.),

is a group selected from the following (1), (2) or (3);

[wherein R^(A1) and R^(A2) are each independently, (i) hydrogen, (ii)C1-8 alkyl, (iii) C2-8 alkenyl, (iv) —NR^(Z1)R^(Z2), (v) —OR^(Z3), (vi)—SR^(Z3), (vii) —COR^(Z4), (viii) CycP or (ix) C1-8 alkyl or C2-8alkenyl substituted with 1 to 5 groups selected from CycP,—NR^(Z1)R^(Z2), —OR^(Z3), —SR^(Z3), —COR^(Z4), —SO₂R^(Z4), —COOR^(Z3),—CONR^(Z1)R^(Z2), —SO₂NR^(Z1)R^(Z2) and —P(O)(OR^(Z5))(OR^(Z6))(wherein R^(Z1) and R^(Z2) are each independently, hydrogen, C1-8 alkyl,C2-8 alkenyl, CycP, C2-8 acyl, or C1-8 alkyl substituted with CycP, C2-8acyl, C1-8 alkoxy, C1-8 alkylthio, C1-8 monoalkylamino or di(C1-8alkyl)amino;R^(Z3) is hydrogen, C1-8 alkyl, C2-8 alkenyl, CycP or C1-8 alkylsubstituted with 1 to 5 groups selected from CycP, C1-8 alkoxy, C1-8alkylthio, amino, C1-8 monoalkylamino, di(C1-8 alkyl)amino and C2-8acyl;R^(Z4) is C1-8 alkyl, CycP or C1-8 alkyl substituted with 1 to 5 groupsselected from CycP, C1-8 alkoxy, C1-8 alkylthio, mono(C1-8 alkyl)amino,di(C1-8 alkyl)amino or C2-8 acyl;R^(Z5) and R^(Z6) are each independently, hydrogen or C1-8 alkyl,CycP is a C4-10 carboring or 5-10 membered heteroring comprising 1-4 ofnitrogen, 1-2 of oxygen and/or 1-2 of sulfur and R¹⁰ has the samemeaning as hereinbefore.) orR^(A1) and R^(A2) may be taken together with the adjacent carbon torepresent CycH

(wherein CycH is a C4-10 mono- or bi-cyclic carboring or 4-10 memberedmono- or bi-cyclic heteroring and R¹⁰ has the same meaning ashereinbefore.) orR^(A1) and R¹⁰ may be taken together with the adjacent carbon andnitrogen to represent

(wherein CycJ is a 5-10 membered mono- or bi-cyclic heteroring andR^(A2) has the same meaning as hereinbefore.).],

[wherein R^(A3) is (i) C1-8 alkyl, (ii) C2-8 alkenyl, (iii)—NR^(Z1)R^(Z2), (ix) —OR^(Z3), (v) —SR^(Z3), (vi) —COR^(Z4), (vii) CycPor C1-8 alkyl or C2-8 alkenyl substituted with 1 to 5 groups selectedfrom —NR^(Z1)R^(Z2), —OR^(Z3), —SR^(Z3), —COR^(Z4), —SO₂R^(Z4), CycP and—P(O)(OR^(Z5))(OR^(Z6)) (wherein all symbols have the same meaning ashereinbefore.),R^(A4) is (i) hydrogen, (ii) C1-8 alkyl, (iii) C2-8 alkenyl, (iv)—COR^(Z4), (v) CycP or (vi) C1-8 alkyl or C2-8 alkenyl substituted with1 to 5 groups selected from CycP, NR^(Z1)R^(Z2), —OR^(Z3), —SR^(Z3),—COR^(Z4), —SO₂R^(Z4), —COOR^(Z3), —CONR^(Z1)R^(Z2), —SO₂NR^(Z1)R^(Z2)and —P(O)(OR^(Z5))(OR^(Z6)) (wherein all symbols have the same meaningas hereinbefore.),R¹⁰ has the same meaning as hereinbefore, orR^(A3) and R^(A4) may be taken together with the adjacent carbon andnitrogen to represent

(wherein CycK is a 5-10 membered mono- or bi-cyclic heteroring and R¹⁰has the same meaning as hereinbefore.),R^(A3) and R¹⁰ may be taken together with the adjacent carbon andnitrogens to represent

(wherein CycL is a 5-10 membered mono- or bi-cyclic heteroring andR^(A4) has the same meaning as hereinbefore.)],

[wherein n is an integer of 1 or 2, and the other symbols have the samemeaning as hereinbefore, and R^(A3) and R^(A4) may be taken togetherwith the adjacent nitrogen and sulfur to represent

(wherein CycM is a 5-10 membered mono- or bi-cyclic heteroring and theother symbols have the same meaning as hereinbefore.) orR^(A3) and R¹⁰ may be taken together with the nitrogens and sulfur torepresent

(wherein CycN is a 5-10 membered mono- or bi-cyclic heteroring and theother symbols have the same meaning as hereinbefore.)],

CycA's, CycB, CycC, CycD, CycE, CycF, CycH, CycJ, CycK, CycL, CycM, CycNand CycP may be each independently substituted with 1-5 of R²⁷,

R²⁷ is (1) C1-8 alkyl, (2) halogen, (3) —NR¹¹R¹², (4) —OR¹³, (5) —SR¹³,(6) CycG, (7) nitro, (8) cyano, (9) oxo, (10) —COR¹⁴, (11) —SO₂R¹⁴, (12)—P(O)(OR¹⁵)(OR¹⁶), (13) guanidino, (14) amidino or (15) C1-8 alkylsubstituted with 1 to 5 groups selected from the following (i)-(xii):

(i) halogen, (ii) —NR¹¹R¹², (iii) —OR¹³, (iv) —SR¹³, (v) CycG, (vi)nitro, (vii) cyano, (viii) —COR¹⁴, (ix) —SO₂R¹⁴, (x) —P(O)(OR¹⁵)(OR¹⁶),(xi) guanidino, (xii) amidino (wherein R¹¹ and R¹² are eachindependently, hydrogen, C1-4 alkyl, C1-4 alkoxy, —C(O)O—(C1-4 alkyl),CycG or C1-4 alkyl substituted with CycG,R¹³ is hydrogen, C1-4 alkyl, trifluoromethyl, CycG or C1-4 alkylsubstituted with CycG,CycG's are each independently, a C4-10 mono- or bi-cyclic carboring or a5-10 membered mono- or bi-cyclic heteroring comprising 1-4 of nitrogen,1-2 of oxygen and/or 1-2 of sulfur,R¹⁴ is C1-8 alkyl, CycG, —NR¹¹R¹², —OR¹³, —SR¹³ or C1-8 alkylsubstituted with CycG, —NR¹¹R¹², —OR¹³ or —SR¹³,R¹⁵'s are each independently, hydrogen or C1-8 alkyl.),when a saturated carbon atom exists in CycH, CycJ, CycK, CycL, CycM orCycN, the saturated carbon atom may form a Spiro bond with CycQ (whereinCycQ is a C3-10 saturated or partially unsaturated mono-cyclic carboringor a 5-8 membered saturated or partially unsaturated monocyclicheteroring comprising 1 of —NR^(Q)— (wherein R^(Q) is C1-8 alkyl, C2-8acyl, —SO₂—(C1-8 alkyl), benzoyl, benzenesulfonyl, or toluenesulfonyl.),1 of oxygen and/or 1 of sulfur which may be oxidized.)] or apharmaceutically acceptable salt thereof.(2) a pharmaceutical composition comprising it as active ingredient, and(3) a method for the preparation thereof.

More specifically, the present invention relates to a compound offormula (I-i)

(wherein all symbols have the same meaning as described hereinbefore.)or a pharmaceutically acceptable salt thereof, a compound of formula(I-ii)

(wherein all symbols have the same meaning as described hereinbefore.)or a pharmaceutically acceptable salt thereof, a compound of formula(I-iii)

(wherein all symbols have the same meaning as described hereinbefore.)or a pharmaceutically acceptable salt thereof.

In the compound of formula (I), CycB is a 5-12 membered heteroringcomprising 1 of nitrogen and 1 of oxo and optionally further comprising1-2 of nitrogen, 1 of oxygen and/or 1 of sulfur.

which R and AA¹ are taken together to form is specifically,

(wherein J¹ is oxygen, sulfur, —NR²⁹— (wherein R²⁹ is hydrogen,C1-4alkyl, CycA, or C1-4 alkyl substituted with CycA.), C1-3 alkylene,or C2-3 alkenylene,J² is a bond or C1-2 alkylene,Y² is —N═CH—, —CH═N—, or C1-2 alkylene,J³ is carbonyl or C1-3 alkylene,Y³ is C1-3 alkylene, oxygen, or —NR²⁹— (wherein R²⁹ has the same meaningas described hereinbefore.),R²⁸ is hydrogen, C1-4 alkyl, CycA, or C1-4 alkyl substituted with CycA,orR²⁸ and R¹ may be taken together to form C2-4 alkylene, the othersymbols have the same meaning as described hereinbefore, each ring maybe substituted with 1-5 of R²⁷.).

CycC is a 3-17 membered heteroring comprising 1-2 of nitrogen, 1 ofoxygen and/or 1 of sulfur.

is specifically

(wherein J⁴, Y⁴, L⁴ are each independently, a bond or C1-3 alkylene(wherein J⁴, Y⁴ and L⁴ are not a bond at the same time.),J⁵ is C1-6 alkylene,Y⁵ is bond, C1-3 alkylene, or —NR⁶⁷— (wherein R⁶⁷ is hydrogen, C1-4alkyl, phenyl, or C1-4 alkyl substituted with phenyl.),J⁸ is C1-5 alkylene (wherein one carbon may be replaced by oxygen.),Y⁸ is a bond or C1-4 alkylene,L⁸ is —N— or —CH— and the other symbols have the same meaning asdescribed hereinbefore.).

CycD is a C3-14 mono- or bi-cyclic carboring, or 3-14 memberedheteroring comprising 1-2 of nitrogen, 1 of oxygen and/or 1 of sulfur.

is specifically

(wherein J⁶ and Y⁶ are each independently, a bond or C1-3 alkylene (withproviso that J⁶ and Y⁶ are not a bond at the same time.),J⁷ is C1-6 alkylene (wherein one carbon may be replaced by oxygen,sulfur, or —NR⁶⁷— (wherein R⁶⁷ has the same meaning as describedhereinbefore.),J⁹ is C1-3 alkylene, oxygen, sulfur, or —NR⁶⁷— (wherein R⁶⁷ has the samemeaning as described hereinbefore.) and, the other symbols have the samemeaning as described hereinbefore.).

CycE is a 4-18 membered heteroring comprising 1 of nitrogen and 1 of oxoand optionally further comprising 1 of nitrogen, 1 of oxygen and/or 1 of—S(O)_(p)— (wherein p is 0 or an integer of 1-2.).

is specifically,

(wherein

is a bond or a double bond,J¹⁰ and Y¹⁰ are each independently, a bond or C1-3 alkylene,L¹⁰ is a bond, C1-3 alkylene, —NR⁵⁷— (wherein R⁵⁷ is hydrogen, C1-4alkyl, phenyl, or C1-4 alkyl substituted with phenyl.), —N═, oxygen, or—S(O)_(p)— (wherein p is 0 or an integer of 1-2.),J¹² and Y¹² are each independently, a bond or C1-3 alkylene,L¹² is C1-3 alkylene, —NR⁵⁷— (wherein R⁵⁷ has the same meaning asdescribed hereinbefore.), —N═, ═N—, oxygen, or —S(O)_(p)— (wherein p hasthe same meaning as described hereinbefore.),the other symbols have the same meaning as described hereinbefore.).

CycF is a 5-8 membered mono-cyclic heteroring comprising 2 of nitrogenand 1 of oxo and optionally further comprising 1-2 of nitrogen, 1-2 ofoxygen and/or 1 of sulfur.

is specifically,

(wherein J¹¹ is carbonyl or C2-4 alkylene, and the other symbols havethe same meaning as described hereinbefore.).

The C4-10 mono- or bi-cyclic carboring which CycH represents is a C4-10mono- or bi-cyclic carboaryl or partially or completely saturated onethereof, and the 4-10 membered heteroring which CycH represents is a4-10 membered mono- or bi-cyclic heteroaryl comprising 1-3 of atomselected from nitrogen, oxygen and sulfur or partially or completelysaturated one thereof.

The 5-10 membered mono- or bi-cyclic heteroring which CycJ represents isa 5-10 membered mono- or bi-cyclic heteroring comprising 2 of nitrogenand 1 of double bond and optionally further comprising 1-3 of atomselected from nitrogen, oxygen and sulfur.

The 5-10 membered mono- or bi-cyclic heteroring which CycK represents isa 5-10 membered mono- or bi-cyclic heteroaryl comprising 1 of nitrogenand 1 of carbonyl and optionally further comprising 1-3 of atom selectedfrom nitrogen, oxygen or sulfur, or partially or completely saturatedone thereof.

The 5-10 membered mono- or bi-cyclic heteroring which CycL represents isa 5-10 membered mono- or bi-cyclic heteroaryl comprising 2 of nitrogenand 1 of carbonyl and optionally further comprising 1-3 of atom selectedfrom nitrogen, oxygen and sulfur or a partially or completely saturatedone thereof.

The 5-10 membered mono- or bi-cyclic heteroring which CycM represents isa 5-10 membered mono- or bi-cyclic heteroaryl comprising 1 of nitrogenand 1 of oxidized sulfur, and optionally further comprising 1-3 of atomselected from nitrogen, oxygen and sulfur or partially or completelysaturated one thereof.

The 5-10 membered mono- or bi-cyclic heteroring which CycN represents isa 5-10 membered mono- or bi-cyclic heteroaryl comprising 2 of nitrogenand 1 of optionally oxidized sulfur and optionally further comprising1-3 of atom selected from nitrogen, oxygen and sulfur or partially orcompletely saturated one thereof.

In the present specification,

which CycB represents is specifically, 2-oxo-1,3,4-triazoline,5-oxo-1,2,4-oxadiazoline, 5-oxo-1,2,4-thiadiazoline, 4-oxoimidazoline,3,4-dihydro-4-oxopyrimidine, 3,4,5,6-tetrahydro-4-oxopyrimidine,2-oxoindoline, 2-oxo-tetrahydroquinoline, 1,2-dihydro-2-oxoquinazoline,1,2-dihydro-2-oxoquinoxaline, 3-oxopyrazolidine,perhydro-3-oxopyridazine, 2-oxo-1,3,4-oxadiazolidine,perhydro-2-oxo-1,3,4-oxadiazine, etc.

In the present specification, the 3-17 membered mono- or bicyclicheteroring, i.e.

which CycC represents is specifically, pyrrolidine, imidazolidine,pyrazolidine, piperidine, piperazine, perhydropyrimidine,perhydropyridazine, thiazolidine, indoline, isoindoline,tetrahydroquinoline, tetrahydroisoquinoline, etc.

In the present specification,

which CycD represents is specifically, cyclopentane, cyclohexane,cycloheptane, benzene, indan, tetrahydronaphthalene, oxolane, oxane,thiolane, thiane, pyrrolidine, piperidine, bicyclo[2.2.1]heptane,bicyclo[2.2.2]octane, 7-azabicyclo[2.2.1]heptane,7-oxobicyclo[2.2.1]heptane, 7-thiabicyclo[2.2.1]heptane, etc.

In the present specification,

which CycE represents is specifically, 2-oxopyrrolidine,2-oxopiperidine, 2-oxoperhydroazepine, 2-oxopiperazine, 3-oxomorpholine,1,1,-dioxo-3-iso thiazolidine, 1,1-dioxo-3-isothiazine, 4-oxodiazepine,2-oxoindoline, 2-oxo-tetra hydroquinoline,1,1-dioxo-3-benzisothiazolidine, 1,1-dioxo-3-benzisothiazine, etc.

In the present specification,

which CycF represents is 2,4-dioxoimidazolidine, 2-oxopiperazine,2-oxoperhydrodiazepine, etc. substituted with R¹ and R².

CycH is a C4-10 mono- or bi-cyclic carboring or 4-10 membered mono- orbi-cyclic heteroring comprising 1-3 of nitrogen, 1-2 of oxygen and/or1-2 of optionally oxidized sulfur.

The C4-10 mono- or bi-cyclic carboring which CycH represents isspecifically, cyclobutane, cyclopentane, cyclohexane, cycloheptane,cyclooctane, cyclononane, cyclodecane, cyclopentene, cyclohexene,cycloheptene, cyclooctene, cyclononene, cyclodecene,bicyclo[4.4.0]decane, bicyclo[4.3.0]nonane, bicyclo[3.3.1]nonane,bicyclo[3.3.0]octane, bicyclo[2.2.2]octane, bicyclo[3.2.1]octane, indan,dihydronaphthalene, tetrahydronaphthalene, etc.

The 4-10 membered mono- or bi-cyclic heteroring comprising 1-3 ofnitrogen, 1-2 of oxygen and/or 1-2 of optionally oxidized sulfur whichCycH represents is specifically

(wherein R^(B) is C1-8 alkyl, C2-8 alkenyl, C2-8 acyl, —SO₂(C1-8 alkyl),—(C1-8 alkyl)-O—(C1-8 alkyl), or C1-8 alkyl substituted with CycG, C2-8acyl, carboxy, —C(O)O(C1-8 alkyl), cyano, amino, mono(C1-8 alkyl)amino,di(C1-8 alkyl)amino or hydroxy.).

The 5-8 membered mono-cyclic heteroring comprising 2 of nitrogen andoptionally further comprising 1 of nitrogen, 1 of oxygen and/or 1 ofoptionally oxidized sulfur which CycJ represents is specifically,

The 5-10 membered mono- or bi-cyclic heteroring comprising 1 of nitrogenand 1 of oxo and optionally further comprising 1-3 of atom selected fromnitrogen, oxygen or sulfur which CycK represents is specifically,

(wherein R^(B) has the same meaning as described hereinbefore).

The 5-10 membered mono- or bi-cyclic heteroring comprising 2 of nitrogenand 1 of oxo and optionally further comprising 1-3 of atom selected fromnitrogen, oxygen or sulfur which CycL represents is specifically

(wherein all symbols have the same meaning as described hereinbefore.).

The 5-10 membered mono- or bi-cyclic heteroring comprising 1 of nitrogenand 1 of oxidized sulfur and optionally further comprising 1-3 of atomselected from nitrogen, oxygen or sulfur which CycM represents isspecifically,

(wherein all symbols have the same meaning as described hereinbefore.).

The 5-10 membered mono- or bi-cyclic heteroring having 2 of nitrogen and1 of oxidized sulfur and optionally further comprising 1-3 of atomselected from nitrogen, oxygen or sulfur which CycN represents isspecifically,

(wherein all symbols have the same meaning as described hereinbefore.),etc.

CycQ includes, for example, cyclopropyl, cyclobutyl, cyclohexyl,cycloheptyl, pyrrolidine, piperidine, perhydroazepine, perhydroazocine,tetrahydrofuran, tetrahydropyran, tetrahydrothiophene, tetrahydrothiin,tetrahydrothiin-5-dioxide, etc.

In the present specification, C1-4 alkyl is methyl, ethyl, propyl, butyland isomers thereof.

In the present specification, C1-8 alkyl is methyl, ethyl, propyl,butyl, pentyl, hexyl, heptyl, octyl and isomers thereof.

In the present specification, C1-4 alkoxy is methoxy, ethoxy, propoxy,butoxy and isomers thereof.

In the present specification, C1-8 alkoxy is methoxy, ethoxy, propoxy,butoxy, pentyloxy, hexyloxy, heptyloxy, octyloxy and isomers thereof.

In the present specification, C2-8 alkenyl is ethyl, propyl, butyl,pentyl, hexyl, heptyl, octyl having 1-3 of double bond and isomersthereof, for example, vinyl, propenyl, butenyl, hexenyl, hexadienyl,octadienyl, etc.

In the present specification, C2-8 alkynyl includes ethyl, propyl,butyl, pentyl, hexyl, heptyl, octyl having 1-3 of triple bond andisomers thereof. For example, ethynyl, propynyl, butynyl, pentynyl,hexynyl, heptynyl, octynyl, etc.

In the present specification, C1-4 alkyl substituted with phenyl isphenylmethyl, phenylethyl, phenylpropyl, phenylbutyl and isomersthereof.

In the present specification, C1-2 alkylene is methylene, ethylene andisomers thereof.

In the present specification, C1-3 alkylene is, methylene, ethylene,trimethylene and isomers thereof.

In the present specification, C1-4 alkylene is, methylene, ethylene,trimethylene, tetramethylene and isomers thereof.

In the present specification, C1-5 alkylene is, methylene, ethylene,trimethylene, tetramethylene, pentamethylene and isomers thereof.

In the present specification, C1-6 alkylene is, methylene, ethylene,trimethylene, tetramethylene, pentamethylene, hexamethylene and isomersthereof.

In the present specification, C2-4 alkylene is, ethylene, trimethylene,tetramethylene and isomers thereof.

In the present specification, C2-6 alkylene is, ethylene, trimethylene,tetramethylene, pentamethylene, hexamethylene and isomers thereof.

In the present specification, C2-8 alkylene is ethylene, trimethylene,tetramethylene, pentamethylene, hexamethylene, heptamethylene,octamethylene and isomers thereof.

In the present specification, C1-8 monoalkylamino is amino group havingone C1-8 alkyl as a substituent, for example, methylamino, ethylamino,propylamino, butylamino, pentylamino, hexylamino, heptylamino,octylamino and isomers thereof.

In the present specification, di(C1-8 alkyl)amino is amino group towhich two C1-8 alkyls (they are the same or different) are attached, forexample, dimethylamino, diethylamino, dipropylamino, dibutylamino,dipentylamino, dihexylamino, diheptylamino, dioctylamino, ethylmethylamino, methylpropylamino, ethylpropylamino, hexylmethylamino, etcand isomers thereof.

In the present invention, C2-6 alkylene wherein one carbon may bereplaced by oxygen, sulfur or —NR²⁰—, —NR⁴⁰— or —NR⁶⁰— is, ethylene,trimethylene, tetramethylene, pentamethylene, hexamethylene and onecarbon of these isomers are replaced by oxygen, sulfur, —NR²⁰—, —NR⁴⁰—or —NR⁶⁰—, for example, —CH₂—O—CH₂—, —CH₂—CH₂—O—CH₂—, —CH₂—CH₂—S—CH₂—,—CH₂—CH₂—NH—CH₂—, —CH₂—CH₂—O—CH₂CH₂—, —CH₂—CH₂—S—CH₂—CH₂—,—CH₂—CH₂—NH—CH₂—CH₂—, —CH₂—CH₂—N(CH₃)—CH₂—CH₂—, etc.

In the present invention, C2-8 alkylene wherein one carbon may bereplaced by oxygen, sulfur, —NR²⁰—, —NR⁴⁰— or —NR⁶⁰— is, ethylene,trimethylene, tetramethylene, pentamethylene, hexamethylene,heptamethylene, octamethylene and isomers thereof and one carbon thereofis replaced by oxygen, sulfur, —NR²⁰—, —NR⁴⁰— or —NR⁶⁰—, for example,—CH₂—O—CH₂—, —CH₂—CH₂—O—CH₂—, —CH₂—CH₂—S—CH₂—, —CH₂—CH₂—NH—CH₂—,—CH₂—CH₂—O—CH₂—CH₂—, —CH₂—CH₂—S—CH₂—CH₂—, —CH₂—CH₂—NH—CH₂—CH₂—,—CH₂—CH₂—N(CH₃)—CH₂—CH₂—, etc.

In the present specification, C2-3 alkenylene is vinylene, allylene andisomers thereof.

In the present specification, halogen is chlorine, fluorine, bromine andiodine.

C3-15 mono-, bi- or tri-cyclic carboring which CycA represents includesC3-15 mono-, bi- or tri-cyclic carboaryl and partially or completelysaturated one thereof, for example, cyclopropane, cyclobutane,cyclopentane, cyclohexane, cycloheptane, cyclopentene, cyclohexene,cyclopentadiene, cyclohexadiene, benzene, pentalene, indene,naphthalene, azulene, fluorene, phenanthrene, anthracene,acenaphthylene, biphenylene, perhydropentalene, perhydroindene,perhydronaphthalene, perhydroazulene, perhydrofluorene,perhydrophenanthrene, perhydroanthracene, perhydroacenaphthylene,perhydrobiphenylene, adamantan ring, etc.

3-15 membered heteroring comprising 1-4 of nitrogen, 1-2 of oxygenand/or 1 of sulfur which CycA represents includes 3-15 memberedheteroaryl comprising 1-4 of nitrogen, 1-2 of oxygen and/or 1 of sulfurand partially or completely saturated one thereof.

Above 3-15 membered heteroaryl comprising 1-4 of nitrogen, 1-2 of oxygenand/or 1 of sulfur includes, for example, pyrrole, imidazole, triazole,tetrazole, pyrazole, pyridine, pyrazine, pyrimidine, pyridazine,azepine, diazepine, furan, pyran, oxepin, oxazepine, thiophene, thiain(thiopyran), thiepin, oxazole, isoxazole, thiazole, isothiazole,oxadiazole, oxazine, oxadiazine, oxazepine, oxadiazepine, thiadiazole,thiazine, thiadiazine, thiazepine, thiadiazepine, indole, isoindole,benzofuran, isobenzofuran, benzothiophene, isobenzothiophene, indazole,quinoline, isoquinoline, phthalazine, naphthyridine, quinoxaline,quinazoline, cinnoline, benzoxazole, benzoxadiazole, benzothiazole,benzoimidazole, carbazole, acridine ring, etc.

Partially or completely saturated 5-15 membered heteroaryl comprising1-4 of nitrogen, 1-2 of oxygen and/or 1 of sulfur includes, for example,aziridine, oxyrane, azetidine, oxetane, thiirane, thietane, pyrroline,pyrrolidine, imidazoline, imidazolidine, triazoline, triazolidine,tetrazoline, tetrazolidine, pyrazoline, pyrazolidine, piperidine,piperazine, tetrahydropyridine, tetrahydropyrimidine,tetrahydropyridazine, dihydropyran, tetrahydrofuran, dihydropyran,tetrahydropyran, dihydrothiophene, tetrahydrothiophene, dihydrothiain(dihydrothiopyran), tetrahydrothiain (tetrahydrothiopyran), oxazoline(dihydroxazole), oxazolidine (tetrahydroxazole), dihydroisoxazole,tetrahydroisoxazole, oxadiazoline (dihydrooxadiazole), oxadiazolidine(tetrahydrooxadiazole), thiazoline (dihydrothiazole), thiazolidine(tetrahydrothiazole), dihydroisothiazole, tetrahydroisothiazole,morpholine, thiomorpholine, indoline, isoindoline, dihydrobenzofuran,perhydrobenzofuran, dihydroisobenzofuran, perhydroisobenzofuran,dihydrobenzothiophene, perhydrobenzothiophene, dihydroisobenzothiophene,perhydroisobenzothiophene, dihydroindazole, perhydroindazole,dihydroquinoline, tetrahydroquinoline, perhydroquinoline,dihydroisoquinoline, tetrahydroisoquinoline, perhydroisoquinoline,dihydrophthalazine, tetrahydrophthalazine, perhydrophthalazine,dihydronaphthyridine, tetrahydronaphthyridine, perhydronaphthyridine,dihydroquinoxaline, tetrahydroquinoxaline, perhydroquinoxaline,dihydroquinazoline, tetrahydro quinazoline, perhydroquinazoline,dihydrocinnoline, tetrahydrocinnoline, perhydro cinnoline,dihydrobenzoxazole, perhydrobenzoxazole, dihydrobenzothiazole,perhydrobenzothiazole, dihydrobenzimidazole, perhydrobenzoimidazole,benzoxazepine, benzoxadiazepine, benzothiazepine, benzothiadiazepine,benzoazepine, benzodiazepine, indoloxoazepine, indolotetrahydroxazepine,indoloxadiazepine, indolotetrahydroxadiazepine, indolothiazepine,indolotetrahydrothiazepine, indolothiadiazepine,indolotetrahydrothiadiazepine, indoloazepine, indolotetrahydroazepine,indolodiazepine, indolotetrahydrodiazepine, benzofurazane,benzothiadiazole, benzotriazole, camphor, imidazothiazole,dihydrocarbazole, tetrahydrocarbazole, perhydrocarbazole,dihydroacridine, tetrahydroacridine, perhydroacridine, dioxolan,dioxane, dioxazine ring, etc.

C4-10 carboring which CycG and CycP represent includes, mono- orbi-cyclic C4-10 carboring, i.e. mono- or bi-cyclic C5-10 carboaryl orpartially or completely saturated one thereof, for example, cyclobutane,cyclopentane, cyclohexane, cycloheptane, cyclopentene, cyclohexene,cyclopentadiene, cyclohexadiene, benzene, pentalene, indene,naphthalene, azulene, perhydropentalene, perhydroindene,perhydronaphthalene, perhydroazulene, adamantly ring, etc.

5-10 membered heteroring comprising 1-4 of nitrogen, 1-2 of oxygenand/or 1 of sulfur which CycG and CycP represent includes, mono- orbi-cyclic 5-10 membered heteroring comprising 1-4 of nitrogen, 1 ofoxygen and 1 of sulfur, i.e. 5-10 membered mono- or bi-cyclic heteroarylcomprising 1-4 of nitrogen, 1 of oxygen and/or 1 of sulfur and partiallyor completely saturated one thereof.

Above 5-10 membered heteroaryl comprising 1-4 of nitrogen, 1-2 of oxygenand/or 1 of sulfur includes, pyrrole, imidazole, triazole, tetrazole,pyrazole, pyridine, pyrazine, pyrimidine, pyridazine, azepine,diazepine, furan, pyran, oxepin, thiophene, thiain (thiopyran), thiepin,oxazole, isoxazole, thiazole, isothiazole, oxadiazole, oxazine,oxadiazine, oxazepine, oxadiazepine, thiadiazole, thiazine, thiadiazine,thiazepine, thiadiazepine, indole, isoindole, benzofuran, isobenzofuran,benzothiophene, isobenzothiophene, indazole, quinoline, isoquinoline,phthalazine, naphthyridine, quinoxaline, quinazoline, cinnoline,benzoxazole, benzothiazole, benzoimidazole ring, etc.

Above partially or completely saturated 5-10 membered mono- or bi-cyclicheteroaryl comprising 1-4 of nitrogen, 102 of oxygen and/or 1 of sulfurincludes, pyrroline, pyrrolidine, imidazoline, imidazolidine,triazoline, triazolidine, tetrazoline, tetrazolidine, pyrazoline,pyrazolidine, piperidine, piperazine, tetrahydropyridine,tetrahydropyrimidine, tetrahydropyridazine, dihydrofuran,tetrahydrofuran, dihydropyran, tetrahydropyran, dihydrothiophene,tetrahydrothiophene, dihydrothiain (dihydrothiopyran), tetrahydrothiain(tetrahydrothiopyran), oxazoline (dihydroxazole), oxazolidine(tetrahydroxazole), dihydroisoxazole, tetrahydroisoxazole, oxadiazoline(dihydroxadiazole), oxadiazolidine (tetrahydroxadiazole), thiazoline(dihydrothiazole), thiazolidine (tetrahydrothiazole),dihydroisothiazole, tetrahydroisothiazole, morpholine, thiomorpholine,indoline, isoindoline, dihydrobenzofuran, perhydrobenzofuran,dihydroisobenzofuran, perhydroisobenzofuran, dihydrobenzothiophene,perhydrobenzothiophene, dihydroisobenzothiophene,perhydroisobenzothiophene, dihydroindazole, perhydroindazole,dihydroquinoline, tetrahydroquinoline, perhydroquinoline,dihydroisoquinoline, tetrahydroisoquinoline, perhydroisoquinoline,dihydrophthalazine, tetrahydrophthalazine, perhydrophthalazine,dihydronaphthyridine, tetrahydronaphthyridine, perhydronaphthyridine,dihydroquinoxaline, tetrahydroquinoxaline, perhydroquinoxaline,dihydroquinazoline, tetrahydroquinazoline, perhydroquinazoline,dihydrocinnoline, tetrahydrocinnoline, perhydrocinnoline,dihydrobenzoxazole, perhydrobenzoxazole, dihydrobenzothiazole,perhydrobenzothiazole, dihydrobenzoimidazole, perhydrobenzoimidazole,etc.

The C3-8 carboring which CycQ represents is cyclopropyl, cyclobutane,cyclopentane, cyclohexane, cycloheptane, cyclooctane, cyclopentene,cyclohexene, cycloheptene, cyclooctene, cyclohexadiene, cycloheptadiene,cyclooctadiene, etc.

The 5-8 membered heteroring which CycQ represents includes, pyrrolidine,piperidine, perhydroazepine, perhydroazocine, tetrahydrofuran,tetrahydropyran, oxepin, oxocan, thiolan, tetrahydrothiophene, thian,thiepan, thiocan, dihydropyrrole, dihydropyridine, dihydroazepine,dihydroazocine, dihydrofuran, dihydropyran, dihydrothiophene, etc.

In the present invention, as may be easily understood by those skilledin the art, the symbol:

indicates that the substituent attached thereto is in front of the sheet(β-position) unless specified,

indicates that the substituent attached thereto is behind the sheet(α-position) unless specified, and

indicates that the substituent attached thereto is in β-position orα-position or a mixture thereof.

In the formula (I), R is all preferable, and more preferably,

(i) hydrogen, (ii) C1-8 alkyl, (iii) CycA, (iv) C1-8 alkyl substitutedwith CycA or nitro,

further preferably hydrogen, C1-8 alkyl, CycA, C1-8 alkyl substitutedwith CycA, nitro,

R¹⁶ is all preferable, and more preferably

[I] (1) C1-8 alkyl, (2) C2-8 alkenyl, (3) C2-8 alkynyl, (4) CycA, (5)C1-8 alkyl substituted with 1-5 of group selected from halogen, CycA,—NHC(O)-CycA or —NHC(O)—(C1-8alkoxy), (6) C2-8 alkenyl substituted withCycA, or (7) C2-8 alkynyl substituted with CycA,wherein CycA may be substituted with 1-5 of R^(27a),R^(27a) is (1) C1-8 alkyl, (2) halogen, (3) —NR¹¹R¹², (4) —OR¹³, (5)phenyl, (6) nitro, (7) cyano, (8) tetrazole, (9) —SR¹³, (10) —COR¹⁴,(11) oxo, or (12) C1-8 alkyl substituted with 1-5 of group selected fromthe following (a)-(k):(a) halogen, (b) —NR¹¹R¹², (c) —OR¹³, (d) phenyl, (e) nitro, (f)trifluoromethyl, (g) cyano, (h) tetrazole, (j) —SR¹³, (k) —COR¹⁴, or[II] (a) C1-8 alkyl, C2-8 alkenyl or C2-8 alkynyl substituted with agroup selected from halogen, trifluoromethyl, nitro, cyano or —NR¹⁸R¹⁹or(b) (1) CycA having 1-5 of substitutent R²⁷, or(2) C1-8 alkyl, C2-8 alkenyl or C2-8 alkynyl substituted with CycAhaving 1-5 of substituent R²⁷(with proviso that, at least one R²⁷ in (1) or (2) is a group selectedfrom (i) C5-10 mono- or bi-cyclic carboring, (ii) 5-10 membered mono- orbi-cyclic heteroring, (iii) —SO₂R¹⁵, (iv) trifluoromethoxy, and (v) C1-8alkyl substituted with 1-5 of group selected from (a) halogen, (b)—NR¹¹R¹², (c) —OR¹³, (d) C5-10 mono- or bi-cyclic carboring, (e) nitro,(f) trifluoromethyl, (g) cyano, (h) 5-10 membered mono- or bi-cyclicheteroring, (j) —SR¹³, (k) —COR¹⁴, (l) —SO₂R¹⁴ or (m) trifluoromethoxy(with proviso that at least one group is C5-10 mono- or bi-cycliccarboring, 5-10 membered heteroring, —SO₂R¹⁴ or trifluoromethoxy.).).

Further preferably R¹⁶ is

[I] (1) C1-8 alkyl, (2) C2-8 alkenyl, (3) C2-8 alkynyl, (4) CycA, (5)C1-8 alkyl substituted with a group selected from CycA or —NHC(O)-CycA,(6) C2-8 alkenyl substituted with CycA, or (7) C2-8 alkynyl substitutedwith CycA, wherein CycA is a C5-10 mono- or bi-cyclic carboaryl orpartially or completely saturated one thereof, or a 5-10 memberedheteroaryl comprising 1-2 of nitrogen, 1-2 of oxygen and/or 1 of sulfuror partially or completely saturated one thereof which may besubstituted with 1-5 of R^(27a), or[II] (a) C1-8 alkyl, C2-8 alkenyl or C2-8 alkynyl substituted withhalogen, trifluoromethyl, nitro, cyano or —NR¹⁸R¹⁹, or(b) (1) CycA having 1-5 of substituent R²⁷, or(2) C1-8 alkyl, C2-8 alkenyl or C2-8 alkynyl having 1-5 of substituentR²⁷(with proviso that, at least one group in (1) or (2) is,(i) a C5-10 mono- or bi-cyclic carboring, (ii) a 5-10 membered mono- orbi-cyclic heteroring, (iii) —SO₂R¹⁴, (iv) trifluoromethoxy, and (v) C1-8alkyl substituted with 1-5 of group selected from (a) halogen, (b)—NR¹¹R¹², (c) —OR¹³, (d) a C5-10 mono- or bi-cyclic carboring, (e)nitro, (f) trifluoromethyl, (g) cyano, (h) a 5-10 membered mono- orbi-cyclic heteroring, (j) —SR¹³, (k) —COR¹⁴, (l) —SO₂R¹⁴ and (m)trifluoromethoxy (with proviso that, at least one group is selected froma C5-10 mono- or bi-heteroring, a 5-10 membered mono- or bi-cyclicheteroring, —SO₂R¹⁴ or trifluoromethoxy.).), wherein CycA is a mono- orbi-cyclic C5-10 carboaryl or partially or completely saturated onethereof, or a 5-10 membered heteroaryl comprising 1-4 of atom selectedfrom nitrogen, oxygen and/or sulfur, or partially or completelysaturated one thereof.

Particularly preferably, R¹⁶ is

[I] (1) C1-4 alkyl, (2) C2-4 alkenyl, (3) C2-4 alkynyl, (4) CycA, or (5)C1-4 alkyl, C2-4 alkenyl or C2-4 alkynyl substituted with CycA, whereinCycA is preferably cyclopentane, cyclohexane, benzene, naphthalene,pyrrolidine, piperidine, piperazine, morpholine, pyrrole, furan,thiophene, pyridine, pyrimidine, pyrazine, pyridazine, indole,isoindole, quinoline, isoquinoline, quinazoline, quinoxaline,phthalazine, benzothiophene, benzofuran, benzoxadiazole,tetrahydroquinoline, tetrahydroquinazoline, tetrahydroquinoxaline whichmay be substituted with 1-5 of R^(27a), or[II] (a) C1-8 alkyl, C2-8 alkenyl or C2-8 alkynyl substituted with agroup selected from halogen, trifluoromethyl, nitro, cyano and —NR¹³R¹⁹or(b) (1) CycA having 1-5 of substituent R²⁷, or(2) C1-8 alkyl, C2-8 alkenyl or C2-8 alkynyl substituted with CycAhaving 1-5 of substituent R²⁷(with proviso that, at least one of R²⁷ in (1) or (2) is(i) a C5-10 mono- or bi-cyclic carboring, (ii) a 5-10 memberedheteroring, (iii) —SO₂R¹⁴, (iv) trifluoromethoxy, and (v) C1-8 alkylsubstituted with 1-5 of group selected from (a) halogen, (b) —NR¹¹R¹²,(c) —OR¹³, (d) a C5-10 mono- or bi-cyclic carboring, (e) nitro, (f)trifluoromethyl, (g) cyano, (h) a 5-10 membered mono- or bi-cyclicheteroring, (j) —SR¹³, (k) —COR¹⁴, (l) —SO₂R¹⁴ and (m) trifluoromethoxy(with proviso that at least one is selected from a C5-10 mono- orbi-cyclic carboring, a 5-10 membered mono- or bi-cyclic heteroring,—SO₂R¹⁴ or trifluoromethoxy.).), CycA is preferably cyclopentane,cyclohexane, cycloheptane, cyclooctane, cyclopentene, cyclohexene,cycloheptene, cyclooctene, benzene, naphthalene, indan, indene,dihydronaphthalene, tetrahydronaphthalene, pyrrolidine, piperidine,piperazine, morpholine, pyrrole, furan, thiophene, pyridine, pyrimidine,pyrazine, pyridazine, indole, isoindole, quinoline, isoquinoline,quinazoline, quinoxaline, phthalazine, benzothiophene, benzofuran,benzoxadiazole, tetrahydroquinoline, tetrahydroquinazoline,tetrahydroquinoxaline.

In the formula (I), AA¹ is preferably a bond, or

or AA¹ is also preferably taken together with R to represent

and more preferably a bond or

R¹ is all preferable and more preferably hydrogen, C1-8 alkyl, phenyl,or C1-8 alkyl substituted with NH₂, C1-4 alkoxy, SH, SCH₃, phenyl,hydroxyphenyl, COOH, CONH₂, guanidino, amidino, imidazole or indole.

R¹ is particularly preferably hydrogen, C1-8 alkyl, phenyl, or C1-8alkyl substituted with C1-4 alkoxy or phenyl. In this case, R² is allpreferable and particularly preferably hydrogen.

Or, R¹ and R² are also preferably taken together to form C3-6 alkylene.

R³ is all preferable, particularly preferably hydrogen or C1-4 alkyl.

Or, R³ and R¹ are also preferably taken together to form C2-4 alkylene.

In the formula (I), AA² is all preferable and more preferably a bond,

and more preferably a bond,

R⁴ is all preferable and more preferably, hydrogen, C1-8 alkyl, phenyl,or C1-8 alkyl substituted with NH₂, C1-4 alkoxy, SH, SCH₃, phenyl,hydroxyphenyl, carboxy, carbamoyl, guanidino, amidino, imidazole orindole.

R⁴ is particularly preferably hydrogen, C1-8 alkyl, phenyl, or C1-8alkyl substituted with C1-4 alkoxy or phenyl. In this case, R⁵ is allpreferable and particularly preferably hydrogen.

Or, R⁴ and R⁵ are also preferably to form C3-6 alkylene.

R⁶ is all preferable and particularly preferably hydrogen or C1-4 alkyl.

Or, R⁶ and R⁴ are also preferably taken together to form C2-4 alkylene.

R³⁸ is all preferable and more preferably,

[I] hydrogen, C1-4 alkyl, phenyl or C1-4 alkyl substituted with phenyl,or[II] when AA¹ is a bond, R³⁸ is taken together with R to form C2-6alkylene (wherein one carbon may be replaced with oxygen, sulfur or—NR³⁷— (wherein R³⁷ is hydrogen or C1-4 alkyl.).).

R³⁸ is particularly preferably [I] hydrogen or C1-4 alkyl, or

[II] when AA¹ is a bond, taken together with R to form tetramethylene,pentamethylene, —CH₂—CH₂—O—CH₂—CH₂—, —CH₂—CH₂—NH—CH₂—CH₂— or—CH₂—CH₂—N(CH₃)—CH₂—CH₂—.

In the formula (I), the group which AA¹ and AA² are taken together toform is all preferable and more preferably

and particularly preferably

R⁷ is all preferable and more preferably hydrogen, C1-8 alkyl,optionally substituted phenyl, pyridyl, tetrahydropyranyl,piperidin-4-yl or cycloheptyl, or C1-8 alkyl substituted with amino,C1-4 alkoxy, mercapto, methylthio, phenyl, hydroxyphenyl, COOH, CONH₂,guanidino, amidino, imidazole, or indole.

R⁷ is particularly preferably, hydrogen, C1-8 alkyl; optionallysubstituted phenyl, tetrahydropyranyl, piperidin-4-yl, cycloheptyl,cyclohexyl, cyclopentyl; C1-8 alkyl substituted with C1-4 alkoxy orphenyl. In this case, R⁸ is all preferable and more preferably hydrogen.

Or, R⁷ and R⁸ are also preferably taken together to form C3-6 alkylene.

R⁷ is also preferably taken together with R⁸ to form C3-6 alkylene whichR⁷ and R⁸ together form is also preferable.

R⁹ is all preferable and particularly preferably hydrogen or C1-4 alkyl.

Or, R⁹ and R⁷ are also preferably taken together to form C2-4 alkylene.

As

each of

is preferable.

In

each of R^(A1) and R^(A2) are preferable and particularly C1-4 alkyloptionally substituted with —OR^(Z1), —SR^(Z1), —CO^(Z2),—NR^(Z3)R^(Z4), phenyl or heteroring comprising 1 to 2 atoms selectedfrom nitrogen, oxygen and sulfur; —OR^(Z1), —SR^(Z1), —CO^(Z2),—NR^(Z3)R^(Z4), phenyl, and R^(A1) and R^(A2) are also preferably takentogether to form CycH. CycH is preferably a C4-10 carboring or a 5-10membered heteroring comprising 1 to 2 atoms selected from nitrogen,sulfur or oxygen.

The ring which CycH forms is preferably

In

R^(A3) is all preferable, particularly R^(A3) is C1-4 alkyl optionallysubstituted with —OR^(Z1), —SR^(Z1), —CO^(Z2), —NR^(Z3)R^(Z4), phenyl or5-8 membered heteroring comprising 1 to 2 atoms selected from nitrogen,oxygen and sulfur; and 5-8 membered heteroring comprising 1 to 2 atomsselected from nitrogen, oxygen and sulfur.

R^(A4) is all preferable, particularly, hydrogen, —COR^(Z4), phenyl,heteroring comprising 1 to 2 atoms selected from nitrogen, oxygen andsulfur, —OR^(Z1), —SR^(Z1), —CO^(Z2), —NR^(Z3)R^(Z4), phenyl or C1-4alkyl substituted with heteroring comprising 1 to 2 atoms selected fromnitrogen, oxygen and sulfur.

And R^(A3) and R^(A4) are also preferably taken together to form CycK.

CycK is preferably

And in

R^(A3) is all preferable, and particularly preferably R^(A3) is—OR^(Z1), —SR^(Z1), —CO^(Z2), —NR^(Z3)R^(Z4), phenyl or C1-4 alkyloptionally substituted with 1 to 2 atoms selected from nitrogen, oxygenand sulfur, or phenyl, 5-8 membered heteroring comprising 1 to 2 atomsselected from nitrogen, oxygen and sulfur.

R^(A4) is all preferable, particularly hydrogen, —COR^(Z4), phenyl,heteroring comprising 1 to 2 atoms selected from nitrogen, oxygen andsulfur, C1-4 alkyl substituted with —OR^(Z1), —SR^(Z1), —CO^(Z2),—NR^(Z3)R^(Z4), phenyl or heteroring comprising 1 to 2 atoms selectedfrom nitrogen, oxygen and sulfur.

Or, R^(A3) and R^(A4) are also preferably taken together to form CycM.

R¹⁰ is all preferable and more preferably hydrogen or C1-4 alkyl.

In the present invention, preferable compounds are, in addition to thecompounds shown in examples, as follows; the compound of formula (Ia-1)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ib-1)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ic-1)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Id-1)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ie-1)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (If-1)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ig-1)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ih-1)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ij-1)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ik-1)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Im-1)

(wherein all symbols have the same meaning as described hereinbefore.).the compound of formula (In-1)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ip-1)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ia-2)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ib-2)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ic-2)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Id-2)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ie-2)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (If-2)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ig-2)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ih-2)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ij-2)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ik-2)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Im-2)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (In-2)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ip-2)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ia-3)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ib-3)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ic-3)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Id-3)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ie-3)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (If-3)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ig-3)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ih-3)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ij-3)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ik-3)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Im-3)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (In-3)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ip-3)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ia-4)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ib-4)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ic-4)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Id-4)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ie-4)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (If-4)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ig-4)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ih-4)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ij-4)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ik-4)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Im-4)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (In-4)

(wherein all symbols have the same meaning as described hereinbefore.),the compound of formula (Ip-4)

(wherein all symbols have the same meaning as described hereinbefore.)and a pharmaceutically acceptable salts.

Specifically, the compounds of the examples described hereafter and thecompounds in the following tables 1 to 16 and pharmaceuticallyacceptable salts thereof are preferable. In the tables, Ph is phenyl,tBu is t-butyl. (R^(q))_(t) represents R²⁷, or more than one R^(q) aretaken together to form a fused ring or a Spiro ring CycQ.

TABLE 1 (I-i-1)

No. R^(B) 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

TABLE 2 (I-i-2)

No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

TABLE 3 (I-i-3)

No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

TABLE 4 (I-i-4)

No. R⁷ 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

TABLE 5 (I-i-5)

No. R 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

TABLE 6 (I-i-6)

No. R¹¹⁶ 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

TABLE 7 (I-ii-1)

No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

TABLE 8 (I-ii-2)

No.

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

TABLE 9 (I-ii-3)

No. R⁷ 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

TABLE 10 (I-ii-5)

No. R 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

TABLE 11 (I-ii-6)

No. R¹⁶ 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

TABLE 12 (I-iii-1)

No.

1

2

3

4

5

6

7

8

9

10

TABLE 13 (I-iii-2)

No.

1

2

3

4

5

6

TABLE 14 (I-iii-3)

No. R⁷ 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

44

45

46

47

48

49

50

51

52

53

54

55

56

57

58

59

60

61

62

63

64

65

66

TABLE 15 (I-iii-5)

No. R 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

TABLE 16 (I-iii-6)

No. R¹⁶ 1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

In the present invention, isomers are included unless specified. Forexample, alkyl, alkoxy, alkylthio, alkenyl, alkynyl, and alkylene andalkenylene include straight and branched ones. Furthermore, the presentinvention includes isomers in double bond, ring, fused ring (E, Z, cis,trans), isomers by the presence of asymmetric carbon etc. (R, S, α, β,enantiomer, diastereomer), optical isomers having optical rotation (D,L, d, l, +, −), polars by chromatography separation (more polar, lesspolar), equilibrium compound, a compound of arbitrary ratios of thoseand racemic mixture.

[Salts]

The compounds of formula (I) of the present invention may be convertedinto corresponding pharmaceutically acceptable salts by conventionalmethods. In the present specification, pharmaceutically acceptable saltsinclude alkali metal salts, alkaline earth metal salts, amine salts,acid-addition salts, etc. and corresponding quaternary ammonium saltswhen the compound of formula (I) contains amino acid residues.

Non-toxic and water-soluble salts are preferable as pharmaceuticallyacceptable salts. Appropriate pharmaceutically acceptable salts includesalts of alkali metals (potassium, sodium, etc.), salts of alkalineearth metals (calcium, magnesium, etc.), ammonium salts and salts ofpharmaceutically acceptable organic amines (tetramethyl ammonium,triethylamine, methylamine, dimethylamine, cyclopentylamine,benzylamine, phenethylamine, piperidine, monoethanolamine,diethanolamine, tris(hydroxymethyl)aminomethane, lysine, arginine,N-methyl-D-glucamine, etc. and preferably alkali metal salts.

Non-toxic, water-soluble acid-addition salts are preferable. Appropriateacid-addition salts are, inorganic salts such as hydrochloride,hydrobromide, sulfate, phosphate, nitrate, or organic salts such asacetate, trifluoroacetate, lactate, tartrate, oxalate, fumarate, malate,citrate, benzoate, methanesulfonate, ethanesulfonate, benzenesulfonate,toluenesulfonate, isethionate, glucuronate, gluconate.

The compounds of formula (I) of the present invention or a salt thereofmay be converted into a solvate of water, ethanol, etc. by aconventional method.

The compounds of formula (I) of the present invention may also beconverted into N-oxide compounds or S-oxide compounds by a conventionalmethod.

[Methods for the Preparation of the Compound of the Present Invention]

[1] In the compound of formula (I), the compound wherein none of R, AA¹,AA², R⁷, R⁸ R⁹, R¹⁰, R^(X) or R^(Y) includes carboxy, hydroxy, amino,mercapto, guanidino, phosphono, i.e. the compound of formula (IA)

(wherein R^(A), AA^(1A), AA^(2A), R^(7A), R^(8A), R^(9A), R^(10A),R^(XA), R^(YA) are each the same meaning as R, AA¹, AA², R⁷, R⁸, R⁹,R¹⁰, R^(X), R^(Y) but none of them includes carboxy, hydroxy, amino,mercapto, guanidino, amidino, phosphono.) may be prepared according tothe method of the following (A), (B) and (C).(A) The compound of formula (IA) may be prepared by subjecting tooxidation reaction the compound of formula (II)

(wherein all symbols have the same meaning as described hereinbefore.).

This oxidation reaction is known, for example,

(1) a method of Swern oxidation,(2) a method utilizing Dess-Martin reagent, and(3) a method utilizing TEMPO reagent, etc. may be included.

To describe them concretely,

(1) the method of Swern oxidation is, for example, carried out in aninert organic solvent (chloroform, methylene chloride, etc.) subjectingto a reaction oxalyl chloride and dimethylsulfoxide at −78° C. and thensubjecting to a reaction the obtained solution with an alcohol compound,and then subjecting to a reaction with a tertiary amine (triethyl amineetc.) at a temperature of −78 to 20° C.(2) the method utilizing Dess-Martin reagent is, for example, carriedout in an inert organic solvent (chloroform, dichloromethane, etc.) inthe presence of Dess-Martin reagent(1,1,1-triacetoxy-1,1-dihydro-1,2-benzoiodoxol-3-(1H)-one) at atemperature of 0 to 40° C.(3) the method utilizing TEMPO reagent is, for example, carried out inan inert organic solvent (chloroform, dichloromethane, etc.), in thepresence of TEMPO reagent (2,2,6,6-tetramethyl-1-piperidinyloxy, freeradical) at a temperature of 20 to 60° C.

These reactions of (1), (2) and (3) are desirably carried out under theatmosphere of an inert gas (argon, nitrogen, etc.).

The present invention further includes other oxidation reactions whichoxidizes alcohol to ketone easily and selectively. For example, Jonesoxidation, oxidation by pyridinium chlorochromate (PCC), sulfurtrioxide-pyridine complex or ones described in “Comprehensive OrganicTransformations” (Richard C. Larock, VCH Publishers, Inc., (1989)604-614) may be used.

(B) The compound of formula (IA) may be prepared by subjecting toamidation reaction the compound of formula (III)

(wherein all symbols have the same meaning as described hereinbefore.)and the compound of formula (IV)

(wherein all symbols have the same meaning as described hereinbefore.).

Amidation reaction is known, for example,

(1) a method using acid halide,(2) a method using mixed anhydride,(3) a method using a condensing agent etc.To explain these methods concretely,(1) the method using acid halide is carried out, for example, bysubjecting to a reaction carboxylic acid and acid-halogenating agent(oxalyl chloride, thionyl chloride, etc.) in an organic solvent(chloroform, methylene chloride, diethyl ether, tetrahydrofuran, etc.)or without a solvent, between −20° C. and refluxing temperature, andthen subjecting thus obtained acid halide to a reaction with amine inthe presence of base (pyridine, triethylamine, dimethylaniline,dimethylaminopyridine, etc.) in an inert organic solvent (chloroform,methylene chloride, diethyl ether, tetrahydrofuran, etc.) at atemperature of 0 to 40° C. Alternatively, it may be carried out bysubjecting to a reaction with acid halide in an organic solvent(dioxane, tetrahydrofuran, etc.) using an aqueous alkali solution (anaqueous solution of sodium bicarbonate or sodium hydroxide, etc.) at atemperature of 0 to 40° C.(2) In a method where mixed anhydride is used, for example, carboxylicacid is subjected to a reaction with acid halide (pivaloyl chloride,tosyl chloride, mesylchloride, etc.) or acid derivative (chloroethylformate, chloroisobutyl formate, etc.) in an organic solvent(chloroform, methylene chloride, diethyl ether, tetrahydrofuran, etc.)or without a solvent, in the presence of a base (pyridine,triethylamine, dimethylaniline, dimethylaminopyridine,diisopropylethylamine, etc.), at a temperature of 0 to 40° C., and thenthus obtained mixed anhydride is subjected to a reaction with amine inan organic solvent (chloroform, methylene chloride, diethyl ether,tetrahydrofuran, etc.) at a temperature of 0 to 40° C.(3) In a method where a condensing agent is used, for example,carboxylic acid is subjected to a reaction with amine in an organicsolvent (chloroform, methylene chloride, dimethylformamide, diethylether, tetrahydrofuran, etc.) or without a solvent, in the presence orabsence of a base (pyridine, triethylamine, dimethylaniline,dimethylaminopyridine, etc.), using a condensing agent(1,3-dicyclohexylcarbodiimide (DCC), 1-ethyl-3-[3-(dimethylamino)propyl]carbodiimide (EDC), 1,1′-carbonyldiimidazole (CDI),2-chloro-1-methylpyridinium iodide, 1-propanephosphonic acid cyclicanhydride (PPA), etc.) in the presence or absence of1-hydroxybenzotriazole (1-HOBt), at a temperature of 0 to 40° C.

The reactions (1), (2) and (3) are desirably carried out underatmosphere of inert gas (argon, nitrogen, etc.) and anhydrousconditions.

(C) In the compound of formula (IA), the compound of formula (IA-i)

(wherein all symbols have the same meaning as described hereinbefore.)may be prepared according to the method described in the followingreaction scheme 1.

In the reaction scheme 1, X is a eliminating group (halogen, methylthio,ethylthio, methanesulfonyloxy, toluenesulfonyloxy,trifluoromethylsulfonyl, etc.), and R^(P) is a protective group ofesters.

The compound of formula (IA-ii)

(wherein all symbols have the same meaning as described hereinbefore.)and the compound of formula

(wherein all symbols have the same meaning as described hereinbefore.)may be prepared according to the method described in reaction scheme 2.

In the reaction scheme 2, all symbols have the same meaning as describedhereinbefore.[2] In the compound of formula (I). the compound wherein at least one ofR, AA¹, AA², R⁷, R⁸, R⁹, R¹⁰, R^(X) or R^(Y) includes carboxy, hydroxy,amino, mercapto, guanidino, amidino or phosphono, i.e. the compound offormula (IB)

(wherein R^(B), AA^(1B), AA^(2B), R^(7B), R^(8B), R^(9B), R^(10B),R^(XB) and R^(YB) have the same meaning as R, AA¹, AA², R⁷, R⁸, R⁹, R¹⁰,R^(X) and R^(Y) respectively, and among them at least one group includescarboxy, hydroxy, amino, mercapto, guanidino, amidino or phosphono.) maybe prepared by subjecting to deprotection reaction the compound offormula (IA), in which at least one group of R, AA¹, AA², R⁷, R⁸, R⁹,R¹⁰, R^(X), R^(Y) includes a protective group of carboxy, hydroxy,amino, mercapto, guanidino, amidino or phosphono, i.e. the compound offormula (IA-1)

(wherein R^(A-1), AA^(1A-1), AA^(2A-1), R^(7A-1), R^(8A-1), R^(9A-1),R^(10A-1), R^(XA-1) and R^(YA-1) has the same meaning as R^(A), AA^(1A),AA^(2A), R^(7A), R^(8A), R^(9A), R^(10A), R^(XA) and R^(YA)respectively, among which at least one group includes a protective groupof carboxy, hydroxy, amino, mercapto, guanidino, amidino or phosphono.).

Protective groups for carboxy include, for example, methyl, ethyl,t-butyl, benzyl, etc.

Protective groups for hydroxy include, for example, methoxymethyl,2-tetrahydropyranyl, t-butyldimethylsilyl, t-butyldiphenylsilyl, acetyl,benzyl, etc.

Protective groups for amino include, for example, benzyloxycarbonyl,t-butoxycarbonyl, trifluoroacetyl, 9-fluorenylmethoxycarbonyl, etc.

Protective groups for mercapto include, for example, benzyl,methoxybenzyl, methoxymethyl, 2-tetrahydropyranyl, diphenylmethyl,acetyl, etc.

Protective groups for guanidino and amidino include, for example,benzyloxycarbonyl, t-butoxycarbonyl, 9-fluorenylmethoxycarbonyl, etc.

Protective groups for carboxy, hydroxy, amino, mercapto, guanidino oramidino are not limited to the above groups, but those groups eliminatedeasily and selectively are also allowed. For example, the ones describedin T. W. Greene, Protective Groups in Organic Synthesis, Wiley, NewYork, 1991 are used.

Protective groups for phosphono include, for example, C1-2 alkyl,phenyl, benzyl, 2,2,2-trichloroethyl and cyanoethyl.

Deprotection reactions of the protective groups of carboxy, hydroxy,amino, mercapto, guanidino, amidino or phosphono are well known, forexample,

1) a deprotection reaction under alkaline conditions,2) a deprotection reaction under acidic conditions,3) a deprotection reaction by hydration,4) a deprotection reaction of silyl-containing groups, etc. may beincluded.

To explain these methods concretely;

1) A deprotection reaction under alkaline conditions is carried out, forexample, in an organic solvent (methanol, tetrahydrofuran, dioxane,dimethylformamide, etc.) using a hydroxide of alkali metals (sodiumhydroxide, potassium hydroxide, lithium hydroxide, etc.), hydroxide ofalkaline earth metals (barium hydroxide, calcium hydroxide, etc.),organic amine (triethylamine, N-methylmorpholine, diisopropylethylamine,piperidine, etc.) or a quaternary ammonium salt (tetrabutyl ammoniumfluoride etc.) or a solution thereof or a mixture thereof at atemperature of 0 to 40° C.;

2) A deprotection reaction under acidic conditions is carried out, forexample, in an organic solvent (methylene chloride, chloroform, dioxane,ethyl acetate, anisole, etc.), using organic acid (acetic acid,trifluoroacetic acid, methanesulfonic acid, etc.) or inorganic acid(hydrochloric acid, sulfuric acid, etc.) or a mixture thereof(hydrobromic acid/acetic acid, etc.) at a temperature of 0 to 100° C.;3) A deprotection reaction by hydration is, for example, carried out ina solvent (ethers (tetrahydrofuran, dioxane, dimethoxyethane, diethylether, etc.), alcohols (methanol, ethanol, etc.), benzenes (benzene,toluene, etc.), ketones (acetone, methyl ethyl ketone, etc.), nitrilessuch as acetonitrile, amides such as dimethylformamide, water, ethylacetate, acetic acid or a mixture of more than two from above, etc.) inthe presence of a catalyst (palladium-carbon, palladium black, palladiumhydroxide, platinum oxide, Raney nickel, etc.) under the atmosphere ofhydrogen of normal or suppressed pressure, or in the presence ofammonium formate at a temperature of 0 to 200° C.

As easily understood by those skilled in the art, the compounds of thepresent invention may be easily prepared by selecting these reactions.

4) A deprotection reaction of silyl-containing group is carried out, forexample, in a water-miscible organic solvent (tetrahydrofuran,acetonitrile, etc.) using tetrabutylammonium fluoride at a temperatureof 0 to 40° C.

Deprotection reaction of protective groups of phosphono is well-known,for example,

(a) Elimination of C1-2 alkyl is carried out by subjecting to a reactionin an organic solvent (chloroform etc.), using halogenatedtrimethylsilyl (e.g. trimethylsilyl chloride, trimethylsilyl bromide,trimethylsilyl iodide, etc.) as a reagent, in the presence or absence ofalkali metal iodide (e.g. sodium iodide, potassium iodide, etc.) at atemperature of 0 to 40° C.(b) Elimination of phenyl is carried out by subjecting to a reactionunder atmosphere of hydrogen, in an organic solvent (methanol, ethanol,tetrahydrofuran, etc.) or without a solvent, in the presence or absenceof a catalyst (platinum oxide etc.) and an organic acid (acetic acidetc.) or inorganic acid (hydrochloric acid etc.) at a temperature of 0to 50° C. for 24 hours to 3 days.(c) Elimination of benzyl is carried out by subjecting to a reactionunder atmosphere of hydrogen, in an organic solvent (methanol, ethanol,tetrahydrofuran, pyridine, acetic acid, etc.) in the presence or absenceof a catalyst (palladium-carbon, palladium black, palladium hydroxide,etc.) at a temperature of 0 to 50° C.(d) Elimination of 2,2,2-trichloroethyl is carried out in an organicsolvent (methanol, ethanol, tetrahydrofuran, etc.) or without a solvent,using fine powder of zinc etc. and an organic acid (acetic acid etc.) oran inorganic acid (hydrochloric acid etc.) at a temperature of 0 to 50°C.(e) Elimination of cyanoethyl is carried out in a solvent (water,methanol, ethanol, tetrahydrofuran, pyridine, etc.) or without a solventin the presence of a base (trimethylamine, dimethylamine, t-butylamine,etc.) at a temperature of 0 to 100° C.

The compound of formula (II), an intermediate of the compound of thepresent invention may be prepared according to the method described inreaction scheme 3.

In the reaction scheme 3, all symbols have the same meaning as describedhereinbefore.

In the compound of formula (IIA), the compound of formula (IIA-i)

(wherein all symbols have the same meaning as described hereinbefore.)may be prepared by the method described in reaction scheme 4.

In the reaction scheme 4, all symbols have the same meaning as describedhereinbefore.

As the method for the preparation of the compound of formula (IIA-i)from the compound of formula (XXII), for example, in the compound offormula (IIA-i), the compound wherein R^(A1) and R^(A2) are takentogether with the adjacent carbon to form thiazolidine ring, may beprepared by the method described in the reaction scheme 5.

In the reaction scheme 5, all symbols have the same meaning as describedhereinbefore.

As is easily understood by those skilled in the art, those compoundswhose structures are similar to the compound of formula (IIA-ia), forexample, the compounds having tetrahydrothiazine or thiazetidinestructures may also be prepared according to the steps A, B or C.

As is also understood by those skilled in the art, in the compound offormula (I), the compound wherein R^(A1) and R^(A2) are taken togetherwith the adjacent carbon to form thiazolidine ring, i.e. the compound offormula (IA-ia)

may also be prepared by the same procedure as described in step A, B orC using the compound of formula (XXIX)

in place of the compound (XXV).

In the compound of formula (IIA), the compound of formula (IIA-ii)

(wherein all symbols have the same meaning as described hereinbefore.)and the compound of formula (IIA-iii)

(wherein all symbols have the same meaning as described hereinbefore.)may be prepared according to the method described in reaction scheme 6.

In the reaction scheme 6, all symbols have the same meaning as describedhereinbefore.

The compound of formula (VI), which is used as a starting material inthe reaction scheme 5 and 6, may be prepared by the method described inthe following reaction scheme 7.

In the reaction scheme 7, R^(Q) is a protective group of amino group,e.g. t-butoxycarbonyl, benzyloxycarbonyl, etc. TBS ist-butyldimethylsilyl, TMS is trimethylsilyl, and the other symbols havethe same meaning as described hereinbefore. R^(B) isR^(A)-AA^(1A)-AA^(2A)- group whose —CO— group in the right is missing,and the other symbols have the same meaning as described hereinbefore.

In the compound of formula (VI), when R-AA^(1A)-AA^(2A)- has carbonyl inthe right, the compound of formula (VI) may be prepared according to themethod described in step C of the reaction scheme 7.

The compounds of formula (III) and (XXIX) may be prepared according tothe method described in the reaction scheme 8.

In the reaction scheme 8, R^(B) represents a groupR^(A)-AA^(1A)-AA^(2A)- whose —CO— group in the right is missing. Theother symbols have the same meaning as described hereinbefore.

The compounds of formula (III) to (XLVI) may be known per se or they maybe prepared by known methods.

The reactions in the reaction schemes may be carried out by knownmethods. In the present invention, other starting materials and reagentsare known per se or they may be prepared by known methods.

For example, in the reaction scheme 5, the compounds of formula (XXV),(XXVII) and (XXVIII) and the compound of formula (XXDC) are known; forexample, they may be prepared by the methods described in WO02/96892.

In each reaction of the present specification, reaction products may bepurified by conventional techniques, for example, distillation underatmospheric or reduced pressure, high performance liquid chromatography,thin layer chromatography or column chromatography using silica gel ormagnesium silicate, washing or recrystallization, etc. Purification maybe carried out after each reaction, or after a series of reactions.

[Pharmacological Activities of the Compounds of the Present Invention]

The pharmacological activities of the compound of formula (I) of thepresent invention was confirmed by the following experiments.

(i) Measurement of Cathepsin K Inhibitory Activity

65 FL of cathepsin K enzyme reaction buffer (50 mmol/L of2-(N-morpholino)ethanesulfonate, 2 mmol/L of ethylenediaminetetraacetate(EDTA) and 4 mmol/L of dithiothreitol (DTT) were mixed to adjust to pH5.5), 5 μL of cysteine protease inhibitor solution of severalconcentrations, 20 μL of synthesized substrate(t-butyloxycarbonyl-L-alanyl-glycyl-L-prolyl-L-arginine-4-methyl-chromanyl-7-amide)solution of several concentrations and 10 μL of cathepsin K enzymesolution were mixed and the increase of fluorescence intensity whenreacted at 37° C. was measured (λex (excitation wavelength)=355 nm, λem(fluorescence wavelength)=460 nm). As to the substrate and the compoundof the present invention, enzyme reactions were carried out incombination of several appropriate concentrations and Dixon plotting wasprepared, to define the absolute value of X-coordinate of theintersection point of the graph as Ki value.

It was confirmed that the compound of formula (I) of the presentinvention showed an inhibitory activity of more than 50%. For example,the Ki value of the compound of example 8(1) was 2.5 nM, that of thecompound of example 2(6) was 14 nM, that of the compound of example 5was 4 nM, and that of the compound of example 8(5) was 4.9 nM.

(ii) Measurement of Cathepsin B Inhibitory Activity

10 μL of synthesized substrate(carbobenzoxy-L-arginyl-L-arginine-4-methyl-chromanyl-7-amide orcarbobenzoxy-L-phenylalanyl-L-arginine-4-methyl-chromanyl-7-amide)solution of several concentrations, 10 μl of cysteine protease inhibitorsolution of several concentrations, 70 μl of cathepsin B enzyme reactionbuffer (mixture of 400 mmol/L in acetic acid, 4 mmol/L EDTA, 8 mmol/LDDT to adjust to pH 5.5) and 10 μl of cathepsin B enzyme solution weremixed and the increase of fluorescence intensity was measured (λex(excitation wavelength)=355 nm, λem (fluorescence wavelength)⁼460 nm)when reacted at 37° C.

It was confirmed that the compound of formula (I) of the presentinvention had an inhibitory activity more than 50% at 10 μM. Forexample, IC50 value of the compound of example 8(5) was 60 nM.

(iii) Measurement of Cathepsin S Inhibitory Activity

10 μl of synthesized substrate(carbobenzoxy-L-leucyl-L-leucyl-L-arginine-4-methyl-chromanyl-7-amide)solution and 5 μl of cysteine protease inhibitor solution of severalconcentrations, 75 μl of cathepsin S enzyme reaction buffer (100 mmol/Lof sodium phosphate, 2 mmol/L of EDTA, 2 mmol/L of DTT were mixed toadjust to pH 6.5) and 10 μl of cathepsin S enzyme solution were mixedand the increase of fluorescence intensity was measured (λex(excitationwavelength)=355 nm, λem (fluorescence wavelength)=460 nm) when reactedat 37° C.

It was confirmed that the compound of formula (I) of the presentinvention has an inhibitory effect more than 50% at 10 μM. For example,1050 value of the compound of example 8(5) was 30 nM.

(iv) Measurement of Cathepsin L Inhibitory Activity

5 μl of Synthesized substrate(carbobenzoxy-L-phenylalanyl-L-arginine-4-methyl-chromanyl-7-amide orL-prolyl-L-phenyl alanyl-L-arginine-4-methyl-chromanyl-7-amide) solutionand 5 μl of cysteine protease inhibitor solution of severalconcentrations, 80 μl of cathepsin L enzyme reaction buffer (400 mmol/Lacetic acid, 4 mmol/L EDTA, 8 mmol/L DTT were mixed to adjust to pH 5.5)and 10 μl of cathepsin L enzyme solution were mixed and the increase offluorescence intensity was measured (λex (excitation wavelength)=355 nm,λem (fluorescence wavelength)=460 nm) when reacted at 37° C.

It was confirmed that the compound of formula (I) of the presentinvention had an inhibitory activity of more than 50% at 10 μM. Forexample, IC50 value of the compound of example 8(5) was 79 nM.

(v) Measurement of Calpain Inhibitory Activity

The activity was measured according to the method described inCalcium-depending protease, Seibutsukagaku-Jikkenhou (BiochemistryExperimental Method) Tanpakubunkaikouso (Protease) I, 57 (1993).

(vi) Measurement of Caspase-1 Inhibitory Activity

50 μl of caspase-1 enzyme reaction solution (20 mmol/L of4-(2-hydroxyethyl)-1-piperazinethanesulfonate-sodium hydroxide buffer pH7.4, 10 mmol/L of potassium chloride, 1.5 mmol/L of magnesium chloride,0.1 mmol/L EDTA, 10% glycerol) and 50 μl of cysteine protease inhibitorsolution of several concentrations, 50 μl of caspase-1 enzyme solutionand 100 μl of synthesized substrate(acetyl-L-tyrosinyl-L-valinyl-L-alanyl-L-asparticacid-4-methyl-chromanyl-7-amide) solution of several concentrations werereacted at 37° C. and the fluorescence intensity was measured (λex(excitation wavelength)=355 nm, λem (fluorescence wavelength)=460 nm).

(vii) Investigation in Bone Resorption Inhibitory Activity Using MouseCalvaria Cultivation System

Mouse neonatal calvaria was cultured in D-minimum essential mediumcontaining cysteine protease inhibitor (mixture of Penicillin Gpotassium (final concentration 100 U/ml), streptomycin sulfate (finalconcentration 0.1 mg/ml), bovine serum albumin (final concentration0.1%), glutamine (final concentration 0.3 mg/ml) in D-minimal essentialmedium) with incitant (parathyroid hormone (PTH) or arotinoid) at 37° C.and the calcium concentration in the culture medium was measured.

(viii) Bone Resorption Pit Formation Test Using Rabbit Osteoclast Cells

Osteoclast cells collected from rabbit bones were sowed over slices ofbovine cortical bone, dentine or teeth of toothed whale and werecultured at 37° C. in α-minimal essential medium containing finalconcentration 5% of fetal bovine serum and various concentrations ofcysteine protease inhibitor. The pits formed on the slices by theosteoclast cells were observed and at the same time type-I collagenC-terminal telopeptide (CTx) concentration in culture medium wasmeasured.

(ix) Investigation of Immune Reaction Inhibitory Effect UsingAntigen-Sensitized Mouse Spleen Cells

Spleen cells were collected from mice sensitized by ovalbumin (OVA)several times. Inhibitory effect of cysteine protease inhibitors againstimmune response induced by OVA stimulus was investigated, using cytokineconcentration and immunoglobulin concentration in culture solution asindicators.

(x) Investigation in Inhibitory Effect Against Bone Resorption Using theRat PTH Hypercalcemia Model

The effect of cysteine protease inhibitor (compulsory oraladministration, intraperitoneal administration) on bone resorption whichwas promoted by intravenous administration of parathyroid hormone (PTH)solution (30 μg/ml) was investigated in rats, using calciumconcentration in blood as an indicator.

(xi) Studies on Bone Resorption Inhibitory Effect Using TPTx RatPTHrP-Induced Hypercalcemia Model

The effect of cysteine protease inhibitor (compulsory oraladministration, intraperitoneal administration) on bone resorption,promoted by subcutaneous administration of parathyroid hormone relatedpeptide (PTHrP) to a fasting rat (thyroparathyroidectomized; TPTx) wasinvestigated, using calcium concentration in blood as an indicator.

(xii) Inhibitory Effects on Human Neutrophil Elastase

A mixture of HEPS buffer (0.2 M, pH 8.0, 0.5 ml), an aqueous solution ofsodium chloride (2.5 M, 0.2 ml), polyethyleneglycol 6000 (1%, 0.1 ml),distilled water (0.04 ml), a solution of the test compound in DMSO (0.05ml), MeO-Suc-Ala-Ala-Pro-Val-pNA (10, 20 and 40 mM, each 0.01 ml) werepreincubated for 5 minutes at 37° C. To the above mixture was addedhuman neutrophil elastase (TINE) (2 U/ml, 0.1 ml) and the reaction wasstarted. The rate of absorbance at 405 nM was measured at 37° C. every30 seconds for 10 minutes. Elastase activity was regarded as generatingrate (V) of liberated p-nitroaniline (pNA) and rate of absorbance perminute (ΔmO.D./min, wavelength=405 nm) was calculated. Inhibitionconstant (Ki value) was calculated from the Dixon plot of the given rateof absorbance.

(xiii) Inhibitory Effects on Human Neutrophil Elastase Induced LungHemorrhage in Hamster

To male Syrian hamsters was administered orally a test compoundsuspended in polyethyleneglycol 400:ethanol:distilled water=51:16:33. At60 min after the administration, to the exposed trachea underpentobarbital anesthesia (60 mg/kg, i.p.) was administered 10 U/0.1mL/lung of human neutrophil elastase (HNE) to induce pulmonaryhemorrhage. 60 minutes after the administration, hamsters were bled tosacrifice and subjected to bronchioalveolar lavage with saline (2.5 mL)and recovered lavage solution (BALF). The recovered BALF (0.2 mL) wasdiluted by 10 times with distilled water and sonicated for 10 minutes.The given supernatant was subjected to the measure, and the amount ofblood in BALF was calculated from absorbance at 412 nm using standardcurve.

(xiv) Inhibitory Effects on Elevation of Elastase Activity in HamsterWhole Blood Induced by Opsonized Zymosan

To a male Syrian hamster was administered a test compound (a suspensionor a solution in a mixture of polyethyleneglycol 400:ethanol:distilledwater=51:16:33 or another appropriate solvent) orally. 60 minutes afteradministration, under ether anesthesia blood (0.9 ml) was drawn from theartery in the abdomen (3.8% sodium citrate solution (0.1 ml) was used).

540 μl of the blood was incubated at 37° C. 5 minutes after incubationto the mixture was added opsonized zymosan (60 μl) and the mixture wasincubated for 30 minutes at 37° C. The reaction was terminated bycooling with ice. After termination the mixture was centrifuged (3,000rpm, 4° C.) for 10 minutes. The supernatant was collected and it wassubjected to measurement of elastase activity.

To a mixture of Tris-HCl buffer solution (pH8.0, 0.2M, 100 μl), anaqueous solution of sodium chloride (2.5 M, 40 μl), distilled water (36μl) and MeO-Suc-Ala-Ala-Pro-Val-pNA (50 mM, 4 μl) was added the abovesupernatant (20 μl) and the mixture was incubated for 24 hours at 37° C.Liberated p-nitroaniline (pNA) was subjected to the measurement of rateof absorbance (405 nm) and the inhibition rate was given by thefollowing equation.

Inhibition rate (%)=[1−(value of the test compound-value ofblank)/(value of control−value of blank)]×100

By the above experiments, it was confirmed that the compound of thepresent invention has a serine protease inhibitory effect, particularlyelastase inhibitory effect by oral administration.

(xv) Measurement of Cathepsin H Inhibitory Activity

According to the method described in FEBS Lett. 280(2)307-310/1991,Methods Enzymol. 80, 535-561/1981, the activity was measured.

(xvi) Measurement of Cathepsin C Inhibitory Activity

According to the method described in J. Immunol. 150, 4733-4742, 1993,the activity was measured.

[Toxicity]

The toxicity of the compound of the present invention was very low andit was confirmed that it was safe enough for pharmaceutical use.

INDUSTRIAL APPLICABILITY Application to Pharmaceuticals

The compound of formula (I) of the present invention has an inhibitoryactivity against cysteine proteases (cathepsins such as K, L, S, B, F,C, H, etc., caspase, calpain, etc.), and therefore it is useful as anagent for the prophylaxis and/or treatment of inflammatory diseases(periodontitis, arthritis, inflammatory bowel diseases, infectiousdiseases, pancreatitis, hepatitis, glomerular nephritis, endocarditis,myocarditis, ulcerative colitis, etc.), immune diseases (diseases bydisorder of immune response (graft versus host diseases, rejection of anorgan transplantation, allergic diseases (bronchial asthma, atopicdermatitis, allergic rhinitis, hay fever, diseases induced by housedusts, irritable pneumonia, food allergy, etc.), psoriasis, rheumatoidarthritis, etc.), autoimmune diseases (insulin-dependent (type I)diabetes, systemic lupus erythematosus, Hashimoto's diseases, multiplesclerosis, etc.), acquired immune deficiency syndrome (AIDS,AIDS-related complex (ARC)), etc.), ischemic diseases (brain ischemia,brain disorder by ischemic reperfusion, cardiac infarction, ischemicliver damage, etc.). respiratory diseases (adult acute respiratorydistress syndrome, lung disorder, fibroid lungs, decomposition ofalveolus elastica (emphysema etc.), circulatory diseases(arterosclerosis, restenosis after PTCA (percutaneous transluminalcoronary angioplasty), hyperlipidemia, etc.), blood diseases(thrombocytopenic purpura, hemolytic uremic syndrome, myelodysplasticsyndrome, cyclic thrombocytopenia, aplastic anemia, spontaneousthrombocytopenia, disseminated intravascular coagulation (DIC),spontaneous thrombocytopenic purpura, autoimmune hemolytic anemia,hyperlipidemia, etc.), neuronal diseases (dementia such as Alzheimer'sdisease, Alzheimer-type senile dementia, cerebrovascular injury,peripheral nerve injury, neurodegenerative disease (Huntington's chorea,Parkinson's disease, multiple sclerosis, traumatic encephalopathy,traumatic spondylopathy, etc.), etc.), hepatic and biliary diseases(primary biliary cirrhosis, viral hepatitis (A, B, C, F, etc.) orhepatitis medicamentosa and cirrhosis, etc.), bone and biliary diseases(osteoporosis, rheumatoid arthritis, arthritis, osteoarthritis,hypocalcaemia, osteometastasis of cancer, bone fracture, etc.),metabolic diseases (osteoporosis, rheumatoid arthritis, arthritis,osteoarthritis, hypocalcaemia, bone metastasis of cancer,endocrinesthenia (hyperthyroidism etc.), diseases induced by apoptosis(graft versus host diseases, rejection during transplantation, acquiredimmunodeficiency syndrome (AIDS), AIDS-related complex (ARC), adult Tcell leukemia, hairy cells leukemia, spondylopathy, disorders ofrespiratory apparatus, arthritis, HIV or HTLV-1 related diseases(uveitis etc.), virus related diseases (hepatitis C etc.), cancer,collagenosis (systemic lupus erythematosus, rheumatoid arthritis, etc.),Sjoegren syndrome, myasthenia gravis, autoimmune diseases (insulindependent (type I) diabetes, etc.), infectious diseases, prostatomegaly,hysteromyoma, bronchial asthma, nephritis, senile cataract, chronicfatigue syndrome, myodystrophy, etc.), diseases induced by decompositionof proteins which compose a body (myodystrophy, cataract, periodontitis,hepatocyte injury by bile acid (cholestatic cirrhosis etc.), etc., shock(septic shock, systemic inflammatory responsive syndrome, endotoxinshock, acidosis, etc.), malignant tumor, AIDS-related complex, parasiticdiseases (malaria etc.).

Cysteine protease which the compound of the present invention inhibitsis all preferable, for example, cathepsin K, cathepsin L, cathepsin S,cathepsin B, cathepsin H, cathepsin F, cathepsin C, calpain, caspase-1.Of course, cysteine proteases other than them are included in the scopeof the present invention and naturally so are those cysteine proteasesto be discovered in the future.

The compound of formula (I) of the present invention and apharmaceutically acceptable salt and acid addition salt thereof alsoinhibits elastase and it is useful for the treatment and/or prophylaxisof diseases induced by an abnormal enhancement of degradation ofelastin, collagen fiber and/or proteoglycans by elastase in mammals,particularly in humans, for example, chronic obstructive pulmonarydisease (COPD) such as pulmonary emphysema, rheumatoid arthritis,arteriosclerosis, adult respiratory distress syndrome (ARDS), glomerularnephritis, myocardial infarction, ulcerative colitis and gingivitis,etc.

The compound of formula (I) of the present invention or apharmaceutically acceptable salt thereof, an acid-addition salt thereofor a hydrate thereof may normally be administered orally orparenterally.

The compound of formula (I) or a pharmaceutically acceptable saltthereof may also be administered as a concomitant agent in combinationwith other agents for

1) supplementing and/or reinforcement of preventive and/or treatingeffect(s) of the compound,2) improvement in kinetics and absorption of the compound and reductionof dose and/or3) reduction of side effect of the compound.

A concomitant agent of the compound of formula (I) with other agents maybe administered in a mode of compounded agent in which both componentsare compounded in a single preparation or in a mode of separatepreparations. When administration is conducted using separatepreparations, a simultaneous administration and administrations withtime difference is included. In the case of administrations with timedifference, the compound of formula (I) may be firstly administered andthen other drug may be administered, or the other drug may be firstlyadministered and then the compound of formula (I) may be administered.Each of the methods for the administration may be the same or different.

There is no particular limitation for the diseases for which theabove-mentioned concomitant agent achieves the preventive and/or thetreating effect but any disease will be acceptable so far as itsupplements and/or enforces the preventive and/or treating effect of thecompound of formula (I).

For example, examples of the other drug for supplementing and/orreinforcing the preventive and/or treating effect of the compound offormula (I) to osseous or articular diseases include, for example,bisphosphonates, steroids, vitamin K derivative, vitamin D derivative,caspase-1 inhibitor, PTHrP derivatives, PG ligands, metalloproteaseinhibitor, farnesoid X receptor agonist, estrogen agonist, progesteroneagonists, etc.

Bisphosphonates include, olpadronate, alendronate sodium hydrate,ibandronate, etidronate disodium, zoledronate, KCO-692 (clodronatesodium hydrate), incadronate disodium, pamidronate disodium, YM175,YM529 (ONO-5920), tiludronate disodium (ME3737, SR41319B), risedronatesodium hydrate (NE-58095), etc.

Steroids include, KB-889 (OD14, tibolone), Osaterone acetate (TZP-4238),etc.

Vitamin K derivatives include menatetrenone, etc.

Vitamin D derivatives include, alfacalcidol, falecalcitriol, calcitriol,1α,25 dihydroxycholecalciferol, dihydrotachysterol, ST-630, KDR, ST-630,ED-71, rocaltrol (Ro44-7190), etc.

Calcitonin formulations include, calcitonin salmon (STH-32, SMC20-51),calcitonin chicken (MC1-536), secalciferol, elcatonin, TJN-135, etc.

Caspase-1 inhibitor include, pralnacasan, nitroflubiprofen, etc.

PTHrP derivatives include, RS-66271, hPTHrP, etc.

Bone Morphogenetic Protein include YM484 (BMP-2), etc.

PG ligands include, for example, ONO-4819, nitroflubiprofen, etc.

PG ligands include, ONO-4819, nitroflubiprofen, etc.

Farnesoid X receptor agonists include, SR-45023A, etc.

Estrogen agonists include, TSE-424, WJ-713/MPA, raloxifene tartarate,Estradiol, teriparatide acetate, osaterone acetate, etc.

Progesterone agonists include, trimegestone, etc.

There is no limitation for the ratio by weight of the compound offormula (I) to other agents.

With regard to other agents, two or more members of any agent may beadministered in combination.

Such other agents which supplement and/or reinforce the preventiveand/or treating effect of the compound of formula (I) include not onlythose which have been found on the basis of the above-mentionedmechanism but also those which will be found in future.

The compound of formula (I) of the present invention, a combination ofthe compound of formula (I) of the present invention and other drug isgenerally administered systemically or topically and orally orparenterally when it is used for the above objects.

The dosages are determined depending on age, body weight, symptom,therapeutic effect, administration route, duration of the treatment andthe like. Generally, 1 mg to 1000 mg per adult is orally administeredonce to several times per day, or 1 mg to 100 mg per adult isparenterally administered (preferably by intravenous administration)once to several times per day, or continuously administered from veinfor 1 to 24 hours per day.

Since the dose changes depending on various conditions as describedabove, there are cases in which doses lower than or greater than theabove ranges may be used.

The compound of formula (I) of the present invention and concomitantagent of the compound of formula (I) of the present invention and otheragent(s) may be administered in the form of solid compositions, liquidcompositions and other compositions for oral administration, andinjections, liniments, suppositories, eye lotions, inhalants and thelike for parenteral administration.

Solid compositions for oral administration include tablets, pills,capsules, dispersible powders, granules and the like.

Capsules include hard capsules and soft capsules.

In such solid compositions, one or more active compound(s) are mixedwith at least one inert diluent such as lactose, mannitol, glucose,hydroxypropyl cellulose, microcrystalline cellulose, starch, polyvinylpyrrolidone or magnesium metasilicate aluminate. The composition mayalso contain additional substances other than the inert diluent, e.g.,lubricants such as magnesium stearate, disintegrating agents such ascellulose calcium glycolate, stabilizing agents such as lactose, andassisting agents for dissolving such as glutamic acid and aspartic acidaccording to usual methods. If necessary, the tablets or pills may becoated with film of gastric- or enteric-coating agents such as sugar,gelatin, hydroxypropyl cellulose and hydroxypropyl cellulose phthalate,or be coated with two or more films. Furthermore, capsules of absorbablematerials such as gelatin are included.

Liquid compositions for oral administration include pharmaceuticallyacceptable emulsions, solutions, syrups, elixirs and the like. In suchliquid compositions, one or more active compound(s) are contained in aninert diluent commonly used (e.g., purified water, ethanol).Furthermore, such compositions may also contain auxiliary material suchas wetting agents or suspending agents, sweetening agents, flavoringagents, flavoring agents, and preserving agents.

Injections for parenteral administration in the present inventioninclude solutions, suspensions and emulsions, and also solid injectionswhich are to be dissolved or suspended in solvents upon use. Such aninjection is prepared by dissolving, suspending or emulsifying one ormore active substances in a solvent and then put to use. Examples of thesolvent include distilled water for injection, physiological saline,plant oil, alcohols such propylene glycol, polyethylene glycol andethanol, and combinations thereof. Further, the injection may contain astabilizer, a solubilizing auxiliary agent such as glutamic acid,aspartic acid and POLYSORBATE 80 (registered trade mark) etc.),suspending agent, emulsifying agent, soothing agent, buffering agent,preservative agent and the like. The injection may be sterilized in thefinal step of the preparation process or the whole preparation processmay be operated under sterile conditions. Alternatively, the sterileproduct, for example a sterile freeze-dried product may be prepared, andupon use, the product may be dissolved in sterilized or asepticdistilled water for injection or other sterilized or aseptic solvents.

Other compositions for parenteral administration include liquids forexternal use, ointments, endemic liniments, inhalants, spraycompositions, suppositories for intrarectal administration, andpessaries for intravaginal administration and the like containing one ormore active compound(s) which can be prepared by known methods.

Spray compositions may contain stabilizing agents such as sodiumhydrogen sulfate, buffering agents to give isotonicity, isotonicsolutions such as sodium chloride, sodium citrate or citric acid, inaddition to inert diluents. For preparation of such spray compositions,for example, the method described in the U.S. Pat. No. 2,868,691 and themethod described in the U.S. Pat. No. 3,095,355 explain it in detail.

BEST MODE FOR CARRYING OUT THE INVENTION

The present invention is explained below in detail based on Examples;but the present invention is not limited thereto.

The solvents in the parentheses show the developing or eluting solventsand the ratios of the solvents used are by volume in chromatographicseparations or TLC. The solvents in the parentheses in NMR show thesolvents for measurement.

In the measurement of NMR, unless specified, DMSO-d₆ is used as asolvent, measurement was done at ordinary temperature, and the examplecompounds represent free compounds.

In the formuli, TBS is t-butyldimethylsilyl, Boc is t-butoxycarbonyl, Phis phenyl, Bn is benzyl, Ac is acetyl, tBu is t-butyl.

Example 1 Preparation ofN′-(3-t-butyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-2-oxo-3-(tetrahydropyran-4-yl)propionohydrazide]hydrochloride

Step 1: To a solution of 4-formyltetrahydropyran (16.5 g) in toluene(150 ml) was added benzylamine (15.5 g) and the mixture was stirred for20 minutes at room temperature. The precipitate was collected, and thefiltrate was concentrated and azeotroped with toluene twice. The residuewas dissolved in toluene (150 ml) and to the mixture were added1-methoxy-1-trimethylsiloxy-2-t-butyldimethylsiloxy ethene (TetrahedronLett., 2001, 42, 4025-4028 (48.0 g)) and scandiumtrifluoromethanesulfonate (III) salt (1.43 g) and the mixture wasstirred for 2 hours at room temperature. To the reaction mixture wasadded acetic acid (30 ml) and stirred for 2 hours and the mixture wasconcentrated. To the residue was added saturated aqueous sodiumbicarbonate and the mixture was extracted with ethyl acetate. Theorganic layer was washed with brine, dried over anhydrous sodium sulfateand concentrated to give3-benzylamino-3-(tetrahydropyran-4-yl)-2-(t-butyldimethylsilyloxy)propanoicacid methyl ester (crude product, 64.6 g).

TLC: Rf 0.43 and 0.21 (n-hexane:ethyl acetate=7:3).

Step 2: To the compound prepared in step 1 (64.0 g) were added 5%palladium carbon and methanol (150 ml) and under the atmosphere ofhydrogen the mixture was stirred vigorously for 4 hours at 40° C. Thereaction mixture was filtered and the filtrate was concentrated. Theresidue was azeotroped with acetonitrile to give3-amino-3-(tetrahydropyran-4-yl)-2-(t-butyldimethylsilyloxy)propanoicacid methyl ester (crude, 49.0 g).

TLC: Rf 0.12 (n-hexane:ethyl acetate=1:1).

Step 3: To a solution of the compound prepared in step 2 (49.0 g) inacetonitrile (150 ml) was added N-methylmorpholine (19.1 ml) and themixture was cooled to 0° C. and to the mixture was addedcyclohexanecarbonyl chloride (19.4 ml) and the mixture was stirred for30 minutes at the same temperature. To the reaction mixture was addedN,N-dimethylethylenediamine (2.55 g) and it was extracted with water andethyl acetate. The organic layer was washed with 1N hydrochloric acid, asaturated aqueous solution of sodium bicarbonate and brine successively,dried over anhydrous sodium sulfate and concentrated to give3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-(t-butyldimethylsilyloxy)propanoic acid methyl ester(crude, 60.3 g).

TLC: Rf 0.74 and 0.75 (n-hexane:ethyl acetate=1:1).

Step 4: To a solution of the compound prepared in step 3 (60 g) inmethanol (80 ml) was added 10% hydrochloric acid-methanol (70 ml) atroom temperature and the mixture was stirred for 40 minutes. Thereaction mixture was concentrated and to the residue was added asaturated aqueous solution of sodium bicarbonate and extracted withethyl acetate. The organic layer was washed with a saturated aqueoussolution of sodium bicarbonate and brine successively, dried overanhydrous magnesium sulfate and concentrated. The residue was washedwith t-butylmethyl ether and dried to give3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-hydroxypropanoicacid methyl ester (28.2 g).

TLC: Rf 0.31 (n-hexane:ethyl acetate=1:1).

Step 5: To a solution of the compound prepared in step 4 (12.2 g) inmethanol (40 ml) was added hydrazine monohydrate (9.7 g) and the mixturewas stirred for 2 hours at room temperature. To the reaction mixture wasadded methanol (20 ml) and it was stirred for another 20 hours. Thereaction mixture was concentrated and to the residue was addeddiisopropyl ether and it was filtered, washed with diisopropyl ether anddried to give3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-hydroxypropanohydrazide(11.4 g).

TLC: Rf 0.30 (methylene chloride:methanol=9:1).

Step 6: To a suspension of the compound prepared in step 5 (626 mg) inDMSO (8 ml) were added N-methylmorpholine (0.22 ml) and2-methylthio-3-t-butylthiazolinium iodide (1.14 g) and the mixture wasstirred for 20 hours at room temperature. To the reaction mixture wasadded water and extracted with ethyl acetate three times. The organiclayers were combined and washed with brine, dried over anhydrous sodiumsulfate and concentrated to giveN′-(3-t-butyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-2-hydroxy-3-(tetrahydropyran-4-yl)propanohydrazine](885 mg).

TLC: Rf 0.71 and 0.70 (methylene chloride:methanol=9:1).

Step 7: To a solution of the compound prepared in step 6 (620 mg) indimethylsulfoxide (5 ml) were added triethylamine (0.95 ml) and sulfurtrioxide-pyridine complex (869 mg) and the mixture was stirred for 30minutes. To the reaction mixture was added water and extracted withethyl acetate. The organic layer was washed with brine, dried overanhydrous sodium sulfate and concentrated. The residue was washed witht-butylmethyl ether and dried to give free compound ofN′-(3-t-butyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-2-oxo-3-(tetrahydropyran-4-yl)propionohydrazide].To the free compound was added 4N hydrochloric acid-ethyl acetatesolution and concentrated. The residue washed with ethyl acetate anddried to give hydrochloride of the title compound (303 mg).

Free Compound

NMR: δ 1.00-1.76 (m, 23H), 2.14 (m, 1H), 2.28 (m, 1H), 3.01 (t, J=6.6Hz, 2H), 3.22 (m, 2H), 3.67 (t, J=6.6 Hz, 2H), 3.82 (m, 2H), 5.02 (m,1H), 7.96 (d, J=8.0 Hz, 1H), 10.64 (s, 1H).

Hydrochloride

TLC: Rf 0.69 (methylene chloride:methanol=9:1);

NMR: δ 0.96-1.83 (m, 23H), 2.12 (m, 1H), 2.29 (m, 1H), 3.08 (t, J=7.0Hz, 2H), 3.24 (m, 2H), 3.73-3.91 (m, 4H), 4.98 (m, 1H), 6.95-7.68(broad, 1H), 8.04 (d, J=7.4 Hz, 1H), 10.94 (s, 1H).

Example 1(1)-Example 1(8)

By the same method as described in example 1 using correspondingcompounds (optionally followed by subjecting to deprotection reaction byknown methods), the following compounds were given.

Example R R³ R^(X) 1(1) cyclohexyl (S)-isobutyl phenyl TLC:Rf 0.64(methylene chloride:isopropanol = 9:1) NMR (100° C.): δ 10.16 (br-m,1H), 7.55-7.50 (m, 3H), 7.36-7.31 (m, 2H), 7.13-7.08 (m, 1H), 4.99(br-m, 1H), 4.13 (t, J = 6.0 Hz, 2H), 3.31 (t, J = 6.0 Hz, 2H),2.23-2.14 (m, 1H), 1.71-1.20 (m, 13H), 0.89 (d, J = 6.0 Hz, 3H), 0.87(d, J = 6.0 Hz, 3H) 1(2) cyclohexyl benzoylpiperidin-4-yl methyl hydro-TLC:Rf 0.71 (methylene chloride:methanol = 9:1) chloride NMR: δ1.00-1.45 (m, 7H), 1.45-1.80 (m, 7H), 2.05-2.35 (m, 2H), 3.09 (s, 3H),317 (m, 1H), 3.38 (t, J = 7.69 Hz, 2H), 3.59 (m, 1H), 3.90-4.20 (m, 3H),4.47 (m, 1H), 4.88 (d, J = 6.32 Hz, 2H), 7.41 (m, 5H), 8.22 (d, J = 5.77Hz, 1H), 11.48 (s, 1H) 1(3) cyclohexyl N-pivaolylpiperidin-4-yl methylhydro- TLC:Rf 0.37 (methylene chloride:methanol = 9:1) chloride NMR: δ1.00-1.40 (m, 16H), 1.40-1.70 (m, 7H), 2.00-2.40 (m, 2H), 2.51-2.80 (m,2H), 3.06 (s, 3H), 3.36 (t, J = 7.28 Hz, 2H), 3.70-4.20 (m, 3H), 4.27(m, 2H), 4.89 (m, 1H), 8.17 (d, J = 6.59 Hz, 11H), 11.38 (s, 1H) 1(4)cyclohexyl N-toluenesulfonyl- methyl hydro- piperidin-4-yl chlorideTLC:Rf 0.56 (methylene chloride:methanol = 9:1) NMR: δ 0.93-1.82 (m,15H), 1.93-2.31 (m, 3H), 2.39 (s, 3H), 2.97-3.06 (m, 3H), 3.23-3.38 (m,2H), 3.61 (m, 2H), 3.88 (m, 2H), 4.00-4.80 (broad, 1H), 4.82 (m, 1H),7.43 (d, J = 8.0 Hz, 2H), 7.59 (d, J = 8.0 Hz, 2H), 8.14 (m, 1H), 11.25(brs, 1H)

Example 1(5)N′-(3-methyl-1,3-thiazolidin-2-ylidene)-[N-(3-cyclohexylcarbonyl)-N-methylamino-4-methyl-2-oxopentanohydrazide]hydrochloride

TLC: Rf 0.39 (ethyl acetate:methanol=9:1);

NMR: δ 11.39 (br-s, 1H), 4.12 (d, J=6.6 Hz, 1H), 4.04 (t, J=7.5 Hz, 2H),3.40 (t, J=7.5 Hz, 2H), 3.13 (s, 3H), 3.11 (s, 3H), 2.63-2.44 (m, 1H),2.41-2.26 (m, 1H), 1.80-1.52 (m, 5H), 1.41-1.10 (m, 5H), 0.97 (d, J=6.9Hz, 3H), 0.81 (d, J=6.9 Hz, 3H).

Example 1(6)N′-(1,3-dimethylimidazolidin-2-ylidene)-3-cyclohexyl-3-cyclohexylcarbonylamino-2-oxopropanohydrazide]dihydrochloride

TLC: Rf 0.56 (methylene chloride:methanol=9:1);

NMR: δ 0.90-1.82 (m, 21H), 2.25 (m, 1H), 2.97 (s, 6H), 3.65 (s, 4H),4.64 (m, 1H), 8.27 (d, J=5.5 Hz, 1H), 10.14 (s, 1H), 11.33 (s, 1H).

Example 1(7)-Example 1(8)

1(7) p = 1 TLC:Rf 0.60 (methylene chloride:methanol 9:1) NMR: δ 11.06(s, 1H,), 8.23 (d, J = 6.3 Hz, 1H), 4.77 (t, J = 6.3 Hz, 1H), 4.59 (s,2H), 3.95-3.70 (m, 2H), 3.34-3.10 (m, 2H), 3.00 (s, 3H), 2.33-2.17 (m,1H), 2.15-1.00 (m, 23H) 1(8) p = 2 TLC:Rf 0.62 (methylenechloride:methanol = 9:1) NMR: δ 11.06 (s, 1H), 8.23 (d, J = 6.3 Hz, 1H),4.78 (t, J = 6.3 Hz, 1H), 4.61 (s, 2H), 3.90-3.75 (m, 2H), 3.35-3.12 (m,2H), 2.98 (s, 3H), 2.33-2.18 (m, 1H), 2.15-2.00 (m, 1H), 1.90-1.00 (m,24H)

Example 2 Preparation of2-[(3S)-3-cyclohexylcarbonylamino-2-hydroxy-5-methyl-hexanohydrazono]-1-methylpyrrolidinehydrochloride

Step 1: To a solution of (2S)-2-amino-4-methylpentanol((L)-leucinol) (20g) in THF (1000 ml) was added di-t-butyl carbonate (43 ml) at 0° C.dropwise and the mixture was stirred for 90 minutes at room temperature.The reaction mixture was concentrated to give a crude product of(2S)-2-(t-butoxycarbonylamino)-4-methylpentanol.

TLC: Rf 0.50 (chloroform:methanol=10:1).

Step 2: To a solution of the compound prepared in step 1 in DMSO (344ml) were added triethylamine (72 ml) and a solution of sulfurtrioxide-pyridine complex (82 g) in DMSO (280 ml) at 10° C. and themixture was stirred for 1 hour. The reaction mixture was poured intoice-water and extracted by ethyl acetate. The organic layer was washedby 10% aqueous solution of citric acid, water and a saturated aqueoussolution of sodium chloride successively, and dried over anhydroussodium sulfate and concentrated to give a crude product of(2S)-2-(t-butoxycarbonylamino)-4-methylpentanal.

TLC: Rf 0.45 (chloroform:methanol=10:1).

Step 3: To a solution of the compound prepared in step 2 in methanol(180 ml) were added acetone cyanohydrine (19 ml) and potassiumcarbonate(4.7 g) at 0° C. and the mixture was stirred for 1 hour at roomtemperature. The reaction mixture was concentrated and the residue wasextracted by ethyl acetate and water. The organic layer was washed bywater and a saturated aqueous solution of sodium chloride successively,dried over anhydrous sodium sulfate and concentrated. The residue waspurified by column chromatography on silica gel (n-hexane:ethylacetate=3:1) to give(3S)-3-(t-butoxycarbonylamino)-2-hydroxy-5-methylhexanenitrile (33.6 g).

TLC: Rf 0.40 (n-hexane:ethyl acetate=3:1).

Step 4: To the compound prepared in step 3 (33.6 g) was added aconcentrated hydrochloric acid (300 ml) and the mixture was stirred for5 hours at 80° C. The reaction mixture was concentrated to give a crudeproduct of (3S)-3-amino-2-hydroxy-5-methylhexanoic acid hydrochloride.

TLC: Rf 0.30 (chloroform:methanol:water=6:4:1).

Step 5: To methanol (1000 ml) was added thionyl chloride (92 ml) at −40°C. dropwise and the mixture was stirred for 10 minutes. The solution wasadded to a solution of the compound prepared in step 4 in methanol (250ml) at −10° C. dropwise and the mixture was stirred for 4 hours at roomtemperature. The reaction mixture was concentrated to give a crudeproduct of methyl (3S)-3-amino-2-hydroxy-5-methylhexanoatehydrochloride.

TLC: Rf 0.50 (chloroform:methanol:water=6:4:1).

Step 6: To a solution of the crude compound prepared in step 5 (32 g) inmethylene chloride (300 ml) were added triethylamine (20 ml) anddi-t-butyl-dicarbonate (34 ml) at 0° C. and the mixture was stirred for4 hours at room temperature. To the reaction mixture was added water andwas extracted by ethyl acetate. The organic layer was washed by 10%aqueous solution of citric acid, a saturated aqueous solution of sodiumbicarbonate, water and a saturated aqueous solution of sodium chloridesuccessively, dried over anhydrous sodium sulfate and concentrated. Theresidue was purified by column chromatography on silica gel(n-hexane:ethyl acetate=3:1) to give(3S)-3-(t-butoxycarbonylamino)-2-hydroxy-5-methylhexanoic acid methylester (28 g).

TLC: Rf 0.40 and 0.35 (n-hexane:ethyl acetate=3:1).

Step 7: To a solution of the compound prepared in step 6 (825 mg) inethyl acetate (6 ml) was added 4N hydrochloric acid-ethyl acetate (9 ml)and the mixture was stirred for 40 minutes at room temperature. Thereaction mixture was concentrated to give(3S)-3-amino-2-hydroxy-5-methylhexanoic acid methyl ester hydrochloride.

TLC: Rf 0.26 (ethyl acetate:methanol=4:1).

Step 8: To a solution of the compound prepared in step 7 in acetonitrile(15 ml) were added N-methylmorpholine (0.49 ml) and cyclohexanecarbonylchloride (484 mg) and the mixture was stirred overnight at roomtemperature. The reaction mixture was poured into 1N hydrochloric acidand extracted with ethyl acetate. The organic layer was washed with asaturated aqueous solution of sodium bicarbonate and brine successivelyand dried over anhydrous magnesium sulfate to give(3S)-3-cyclohexylcarbonylamino-2-hydroxy-5-methylhexanoic acid methylester (682 mg).

TLC: Rf 0.53 and 0.39 (n-hexane:ethyl acetate=1:1).

Step 9: To a solution of the compound prepared in step 8 (670 mg) inmethanol (2.4 ml) was added 1N aqueous solution of sodium hydroxide (2.4ml) and the mixture was stirred for 30 minutes at room temperature. Thereaction mixture was poured into 1N hydrochloric acid and was extractedwith ethyl acetate. The organic layer was washed with brine, dried overanhydrous magnesium sulfate and concentrated to give(3S)-3-cyclohexylcarbonylamino-2-hydroxy-5-methylhexanoic acid (676 mg).

TLC: Rf 0.56 (ethyl acetate:methanol=4:1).

Step 10: To a solution of the compound prepared in step 9 (271 mg) andN-methylpyrrolidine-2-ylidenehydrazine (186 mg) in DMF (2 ml) were added1-hydroxybenzotriazole (150 mg), triethylamine (0.34 ml) and1-ethyl-3-[3-(dimethylamino)propyl]carbodiimide hydrochloride (230 mg)and the mixture was stirred for 17 hours. To the reaction mixture wasadded brine, and extracted with ethyl acetate twice. The organic layerwas dried over anhydrous sodium sulfate and concentrated. The residuewas washed with diisopropyl ether and dried to give2-[(3S)-3-cyclohexylcarbonylamino-2-hydroxy-5-methylhexanohydrazono]-1-methylpyrrolidinehydrochloride (243 mg).

TLC: Rf 0.78 (methylene chloride:methanol=8:2).

Step 11: To a suspension of the compound prepared in step 10 (219 mg) inDMSO (0.42 ml) were added ethyl acetate (0.5 ml), triethylamine (0.42ml) and sulfur trioxide-pyridine complex (286 mg) and the mixture wasstirred for 1 hour. To the reaction mixture was added brine andextracted with ethyl acetate. The organic layer was washed with brine,dried over anhydrous sodium sulfate and concentrated. The residue waspurified by column chromatography on silica gel (ethylacetate:methanol=20:1->1:1). The product was dissolved in ethyl acetateand thereto was added hydrochloric acid-ethyl acetate (0.1 ml) andconcentrated to giveN′-(1-methylpyrrolidine-2-ylidene)-(3-cyclohexylcarbonylamino-5-methyl-2-oxohexanohydrazide)hydrochloride (107 mg).

TLC: Rf 0.51 (ethyl acetate:methanol=9:1);

NMR: δ 11.8-11.4 (broad, 1H), 11.6 (brs, 1H), 8.35 (m, 1H), 4.78 (m,1H), 3.80 (m, 2H), 3.14 (s, 3H), 2.83 (m, 2H), 2.18 (m, 1H), 2.04 (m,2H), 1.80-1.00 (m, 13H), 1.00-0.70 (m, 6H).

Example 2(1)-Example 2(17)

By the same procedures as described in example 2 using a correspondingcompound, the following compounds were given. Unless specified, freecompounds are shown.

Example R^(L) R⁷ R^(K) 2(1) cyclohexyl isopropyl

TLC:Rf 0.52 (ethyl acetate:methanol 9:1) NMR: δ 10.52 (s, 1H), 7.92 (d,J = 7.2 Hz, 1H), 4.84 (t-like, J = 6.9 Hz, 1H), 3.43-3.27 (m, 4H), 2.68(s, 3H), 2.35-2.24 (m, 1H), 2.22-2.10 (m, 1H), 1.67-1.58 (m, 5H),1.37-1.07 (m, 5H), 0.87 (d, J = 6.9 Hz, 3H), 0.82 (d, J = 6.9 Hz, 3H)2(2) cyclohexyl isopropyl

TLC:Rf 0.29 (n-hexane:ethyl acetate = 1:3) NMR: δ 10.91 (s, 1H), 8.10(d, J = 6.9 Hz, 1H), 4.74 (t-like, J = 6.9 Hz, 1H), 4.39 (dt, J = 2.4,7.5 Hz, 2H), 3.64 (t, J = 7.5 Hz, 2H), 2.34-2.23 (m, 1H), 2.21-2.09 (m,1H), 1.67-1.58 (m, 5H), 1.37-1.10 (m, 5H), 0.88 (d, J = 6.9 Hz, 3H),0.84 (d, J = 6.9 Hz, 3H) 2(3) cyclohexyl neopentyl

TLC:Rf 0.59 (methylene chloride:methanol = 9:1) NMR: δ 10.52 (brs, 1H),8.06 (d, J = 7.2 Hz, 1H), 5.02-4.92 (m, 1H), 3.45-3.20 (m, 4H), 2.69 (s,3H), 2.23-2.09 (m, 1H), 1.80-1.03 (m, 12H), 0.89 (s, 9H) 2(4) cyclohexylisobutyl

TLC:Rf 0.56 (methylene chloride:methanol = 9:1) NMR: δ 10.52 (brs, 1H),8.08 (d, J = 7.2 Hz, 1H), 4.96-4.85 (m, 1H), 3.43-3.20 (m, 4H), 2.69 (s,3H), 2.24-2.11 (m, 1H), 1.83-1.04 (m, 13H), 0.88 and 0.85 (each d, J =6.6 Hz, total 6H) 2(5) cycloheptyl neopentyl

TLC:Rf 0.59 (methylene chloride:methanol = 9:1) NMR: δ 10.4 (broad, 1H),7.69 (broad, 1H), 4.95 (m, 1H), 3.43 (t, J = 7.2 Hz, 2H), 2.38 (m, 1H),2.28 (t, J = 7.2 Hz, 2H), 2.03 (m, 2H), 1.85-1.33 (m, 14H), 0.93 (s, 9H)2(6) cycloheptyl neopentyl

TLC:Rf 0.65 (methylene chloride:methanol = 9:1) NMR: δ 10.6 (brs, 1H),8.08 (brd, J = 7.2 Hz, 1H), 4.91 (m, 1H), 3.47 (m, 2H), 3.24 (t, J = 7.2Hz, 2H), 2.38-2.25 (m, 3H), 1.75-1.32 (m, 14H), 0.90 (s, 9H) 2(7)cyclohexyl

TLC:Rf 0.49 (methylene chloride:methanol = 9:1) NMR: δ 1.01-1.76 (m,14H), 1.92-2.14 (m, 3H), 2.19-2.33 (m, 3H), 3.23 (m, 2H), 3.41 (t, J =7.14 Hz, 2H), 3.82 (m, 2H), 4.77 (m, 1H), 8.17 (d, J = 7.42 Hz, 1H),10.72 (s, 1H) 2(8) cyclohexyl neopentyl

TLC:Rf 0.38 (methylene chloride:methanol = 9:1) NMR: δ 11.50 (s, 1H),8.43 (d, J = 6.6 Hz, 1H), 4.54-4.46 (m, 1H), 4.15-3.95 (m, 2H), 2.60 (t,J = 8.4 Hz, 2H), 2.22-2.07 (m, 1H), 1.78-1.03 (m, 12H), 0.90 (s, 9H)2(9) hydro- chloride cyclohexyl cyclohexyl

TLC:Rf 0.56 (methylene chloride:methanol = 9:1) NMR: δ 0.90-1.90 (m,2H), 2.05 (m, 2H), 2.26 (m, 1H), 2.82 (t, J = 7.5 Hz, 2H), 3.14 (s, 3H),3.81 (t, J = 7.5 Hz, 2H), 4.66 (m, 1H), 8.27 (d, J = 5.7 Hz, 1H),11.7-11.4 (broad, 1H), 11.55 (brs, 1H) 2(10) cyclohexyl

TLC:Rf 0.59 (methanol:ethyl acetate = 1:9) NMR: δ 1.00-1.80 (m, 14H),2.00-2.40 (m, 2H), 3.27 (m, 2H), 3.83 (m, 2H), 4.55 (s, 2H), 4.79 (t, J= 6.46 Hz, 1H), 7.45-7.80 (m, 4H), 8.22 (d, J = 6.87 Hz, 1H), 11.10 (s,1H) 2(11) cyclohexyl

TLC:Rf 0.49 (ethyl acetate) NMR(CDCl₃): δ 0.90-1.90 (m, 14H), 1.95-2.15(m, 1H), 2.15-2.60 (m, 1H), 3.38 (m, 2H), 3.96 (m, 2H), 4.11 (m, 1H),5.07 (m, 2H), 7.07 (m, 1H), 7.31 (m, 1H), 7.40-7.70 (m, 2H), 8.10 (m,1H), 9.35 (m, 1H) 2(12) cycloheptyl

TLC:Rf 0.65 (ethyl acetate:methanol = 9:1) NMR: δ 1.43 (m, 23H), 2.43(m, 1H), 2.69 (s, 3H), 3.34 (m, 4H), 4.80 (t-like, J = 6.59 Hz, 1H),7.98 (d, J = 7.14 Hz, 1H), 10.47 (s, 1H) 2(13) cyclohexyl

TLC:Rf 0.41 (ethyl acetate:methanol = 9:1) NMR: δ 1.27 (m, 9H), 1.65 (m,5H), 2.09 (m, 1H), 2.26 (m, 1H), 2.69 (s, 3H), 3.29 (m, 6H), 3.80 (m,2H), 4.81 (t-like, J = 6.73 Hz, 1H), 8.11 (d, J = 7.14 Hz, 1H), 10.50(s, 1H) 2(14) cycloheptyl

TLC:Rf 0.40 (n-hexane:ethyl acetate = 1:2) NMR: δ 1.44 (m, 23H), 2.44(m, 1H), 3.22 (m, 2H), 3.41 (t, J = 8.10 Hz, 2H), 4.28 (d, J = 15.11 Hz,1H), 4.35 (m, 1H), 4.82 (t, J = 6.59 Hz, 1H), 7.26 (m, 5H), 8.00 (d, J =7.14 Hz, 1H), 10.55 (s, 1H) 2(15) cyclohexyl

TLC:Rf 0.52 (ethyl acetate:methanol = 9:1) NMR: δ 1.45 (m, 14H), 2.10(m, 1H), 2.28 (m, 1H), 3.22 (m, 4H), 3.41 (t, J = 7.97 Hz, 2H), 3.81 (m,2H), 4.28 (d, J = 15.11 Hz, 1H), 4.34 (m, 1H), 4.82 (t, J = 6.73 Hz,1H), 7.28 (m, 5H), 8.14 (d, J = 7.14 Hz, 1H), 10.57 (s, 1H) 2(16)cyclohexyl

TLC:Rf 0.55 (ethyl acetate:methanol = 9:1) NMR: δ 1.57 (m, 20H), 3.14(m, 1H), 3.65 (m, 8H), 5.18 (m, 1H), 6.20 (d, J = 8.24 Hz, 1H), 8.65 (s,1H) 2(17) cycloheptyl

TLC:Rf 0.57 (ethyl acetate) NMR: δ 1.50 (m, 27H), 2.30 (m, 1H), 3.14 (m,1H), 3.67 (m, 4H), 5.11 (m, 1H), 6.02 (d, J = 7.97 Hz, 1H), 8.58 (s, 1H)

Example 3 Preparation ofN′-benzylidene-[(3S)-3-cyclohexylcarbonylamino-5-methyl-2-oxohexanohydrazide]

Step 1: To a solution of the compound prepared in step 8 of example 2(11.4 g) in methanol (40 ml) was added hydrazine monohydrate (10.2 g)and the mixture was stirred overnight at room temperature. Theprecipitate was collected and washed with methanol and dried to give(3S)-3-cyclohexylcarbonylamino-2-hydroxy-5-methylhexanohydrazide (11.0g).

TLC: Rf 0.39 (methylene chloride:methanol=9:1).

Step 2: To a suspension of the compound prepared in step 1 (300 mg) inethanol (3 ml) was added benzaldehyde (0.66 ml) and the mixture wasrefluxed for 6 hours. The reaction mixture was concentrated and theresidue was washed with t-butyl methyl ether and dried to giveN′-benzylidene-[(3S)-3-cyclohexylcarbonylamino-2-hydroxy-5-methylhexanohydrazide] (340 mg).

TLC: Rf 0.77 (ethyl acetate).

Step 3: To a solution of the compound prepared in step 2 (233 mg) inDMSO (2 ml) were added triethylamine (0.2 ml) and sulfurtrioxide-pyridine complex (2.96 mg) at 0° C. and the mixture was stirredfor 30 minutes. To the reaction mixture was added water and extractedwith ethyl acetate. The aqueous layer was reextracted with chloroform.The organic layers were combined and washed with brine, dried overanhydrous sodium sulfate and concentrated. The residue was washed withdiisopropylether and dried to giveN′-benzylidene-[(3S)-3-cyclohexylcarbonylamino-5-methyl-2-oxohexanohydrazide](182 mg).

TLC: Rf 0.56 (ethyl acetate:n-hexane=1:1);

NMR: δ 12.18 and 12.09 (each brs, totally 1H), 8.49 and 7.99 (each s,totally 1H), 8.17 and 8.07 (each brd, J=6.3 Hz, totally 1H), 7.70-7.60(m, 2H), 7.50-7.35 (m, 3H), 5.00 and 4.89 (each m, totally 1H),2.30-2.10 (m, 1H), 1.81-1.02 (m, 13H), 1.00-0.80 (m, 6H).

Example 3(1)-Example 3(12)

By the same procedure as described in example 3 using the compoundprepared in step 9 of example 2 or a corresponding compound, thefollowing compounds were given. Unless specified, free compounds areshown.

Example R^(L) R⁷

3(1) cyclohexyl (S)-isobutyl isopropylidene TLC:Rf 0.49 (ethyl acetate)NMR: δ 11.02 and 10.61 (each brs, totally 1H), 8.10 and 7.90 (each brd,J = 7.2 Hz, and J = 9.0 Hz, totally 1H), 4.98 and 4.80 (each m, totally1H), 2.30-1.00 (m, 20H), 1.00-0.80 (m, 6H) 3(2) cyclohexyl (S)-isobutyl1-phenylethylidene TLC:Rf 0.80 (ethyl acetate) NMR: δ 11.40 and 10.50(each br, totally 1H), 8.13 and 8.02 (each brd, J = 7.5 Hz, and J = 9.0Hz, totally 1H), 7.81 and 7.69 (each m, totally 2H), 7.48-7.37 (m, 3H),5.03-4.80 (m, 1H), 2.30-2.10 (m, 4H), 1.80-1.00 (m, 13H), 1.00-0.78 (m,6H) 3(3) cyclohexyl (S)-isobutyl cyclopentylidene TLC:Rf 0.51 (ethylacetate) NMR: δ 10.92 and 10.43 (each brs, totally 1H), 8.06 and 7.89(each brd, J = 7.2 Hz, and J = 9.0 Hz, totally 1H), 4.96 and 4.73 (eachm, totally 1H), 2.40-2.10 (m, 5H), 1.80-1.00 (m, 17H), 1.00-0.78 (m, 6H)3(4) cyclohexyl isobutyl pyridin-2-ylmethylidene hydro- TLC:Rf 0.38(ethyl acetate) chloride NMR: δ 12.60 and 12.40 (each brs, totally 1H),8.66 and 8.25 (each brd, J = 5.1 Hz, and J = 6.6 Hz, totally 1H), 8.57and 8.11 (each brs, totally 1H), 8.20-8.00 (m, 2H), 7.70-7.50 (m, 2H),6.90-6.30 (m, 1H), 5.00-4.80 (m, 1H), 2.30-2.10 (m, 1H), 1.80-1.00 (m,13H), 1.00-0.78 (m, 6H) 3(5) cyclohexyl (S)-isobutylfuran-3-ylmethylidene TLC:Rf 0.78 (ethyl acetate) NMR: δ 12.03 and 11.98(each brs, totally 1H), 8.41 and 7.98 (each s, totally 1H), 8.20-7.70(m, 3H), 6.75 (m, 1H), 5.01-4.83 (m, 1H), 2.30-2.10 (m, 1H), 1.80-1.00(m, 13H), 1.00-0.78 (m, 6H) 3(6) cyclohexyl (S)-isobutyl3-methyl-1-butylidene TLC:Rf 0.84 (ethyl acetate) NMR: δ 11.70 and 10.60(each brs, totally 1H), 8.20 and 7.90 (each brd, J = 7.2 Hz, and J = 9.0Hz, totally 1H), 7.77 and 7.31 (each t, J = 5.1 Hz, 1H), 4.98-4.80 (eachm, totally 1H), 2.30-1.95 (m, 3H), 1.90-1.00 (m, 14H), 1.00-0.80 (m,12H) 3(7) cyclohexyl (S)-isobutyl tetrahydropyran-4-yl methylideneTLC:Rf 0.83 (ethyl acetate) NMR: δ 11.73 and 11.60 (each brs, totally1H), 8.13 and 7.93 (each brd, J = 7.2 Hz, and J = 9.0 Hz, totally 1H),7.71 and 7.30 (each brd, J = 5.1 Hz, totally 1H), 4.92-4.70 (m, 1H),3.90-3.70 (m, 2H), 3.43-3.20 (m, 2H), 2.60-2.05 (m, 2H), 1.80-1.00 (m,17H), 1.00-0.80 (m, 6H) 3(8) cyclohexyl (S)-isobutyltetrahydropyran-4-ylidene TLC:Rf 0.44 (methanol:ethyl acetate = 1:19)NMR: δ 11.73 and 11.60 (each brs, totally 1H), 8.13 and 7.93 (each brd,J = 7.2 Hz, and J = 9.0 Hz, totally 1H), 7.71 and 7.30 (each brd, J =5.1 Hz, totally 1H), 4.92-4.70 (m, 1H), 3.90-3.70 (m, 2H), 3.43-3.20 (m,2H), 2.60-2.05 (m, 2H), 1.80-1.00 (m, 17H), 1.00-0.80 (m, 6H) 3(9)cyclohexyl neopentyl 1-(pyridin-2-yl)ethylidene free compound NMR (100°C.): δ 8.59 (brd, J = 3.9 Hz, 1H), 7.98 (br, 2H), 7.80 (m, 1H), 7.40 (m,1H), 4.92 (m, 1H), 2.38 (s, 3H), 2.19 (m, 1H), 1.90-1.50 (m, 7H),1.40-1.03 (m, 5H), 1.00-0.78 (m, 9H) hydrochloride TLC:Rf 0.47(methylene chloride:methanol = 9:1) NMR: δ 11.71 and 11.02 (each brs,totally 1H), 8.60 (m, 1H), 8.30-7.81 (m, 3H), 7.60-7.40 (m, 1H), 5.10and 4.87 (each m, totally 1H), 2.40 and 2.31 (each s, totally 3H),2.21-2.03 (m, 1H), 1.80-1.00 (m, 12H), 0.91 and 0.82 (each s, totally9H) 3(10) cyclohexyl neopentyl 1-(pyridin-4-yl)ethylidene hydro- TLC:Rf0.70 (methylene chloride:methanol = 9:1) chloride NMR: δ 12.10 and 11.37(each brs, totally 1H), 8.92-8.82 (m, 2H), 8.30-7.90 (m, 3H), 5.03-4.78(m, totally 1H), 2.60-2.21 (m, 3H), 2.30-2.00 (m, 1H), 1.80-1.40 (m,6H), 1.40-1.00 (m, 6H), 1.00-0.70 (m, 9H) 3(11) cyclohexyl neopentyl1-(3-trifluoromethyl- phenyl)ethylidene TLC:Rf 0.66 (n-hexane:ethylacetate = 1:1) NMR: δ 11.60 and 11.02 (each brs, each 1H), 8.20-8.10 (m,2H), 8.02-7.90 (brs, 1H), 7.83-7.60 (m, 2H), 5.04 and 4.82 (each t, J =9.0 Hz, totally 1H), 2.38 and 2.27 (each s, totally 3H), 2.20-2.00 (m,1H), 1.80-1.00 (m, 12H), 0.91 and 0.82 (each s, totally 9H) 3(12)cyclohexyl neopentyl 1-(4-trifluorophenyl) ethylidene TLC:Rf 0.55(n-hexane:ethyl acetate = 1:1) NMR: δ 11.61 and 11.20 (each m, totally1H), 8.20-7.90 (m, 5H), 5.05 and 4.85 (each t, J = 9.0 Hz, totally 1H),2.37 and 2.26 (each s, totally 3H), 2.20-2.00 (m, 1H), 1.90-1.00 (m,12H), 0.91 and 0.82 (each s, totally 9H)

Example 4 Preparation ofN′-acetyl-N′-phenyl-[(3S)-3-cyclohexylcarbonylamino-5-methyl-2-oxohexanohydrazide]

Step 1: To a solution of the compound prepared in step 9 of example 2(620 mg) and phenylhydrazine (246 mg) in N,N-dimethyldormamide (5 ml)were added 1-hydroxybenzotriazole (342 mg) and1-ethyl-3-[3-(dimethylamino)propyl]carbodiimide hydrochloride (524 mg)and the mixture was stirred for 3 hours at room temperature. To thereaction mixture were added water and ethyl acetate and the mixture wasfiltered. The filtrate was extracted and the organic layer was washedwith brine, dried over sodium sulfate and concentrated. The residue wascombined with the above given precipitate and washed with diisopropylether and dried to giveN′-phenyl-[(3S)-3-cyclohexylcarbonylamino-2-hydroxy-5-methylhexanohydrazide](635 mg).

TLC: Rf 0.51 (ethyl acetate).

Step 2: To a solution of the compound prepared in step 1 (510 mg) inpyridine (5 ml) was added acetic anhydride (0.40 ml) at room temperatureand the mixture was stirred for 15 hours. To the reaction mixture wasadded 2N hydrochloric acid and extracted with ethyl acetate. The organiclayer was washed with a saturated aqueous solution of sodium bicarbonateand brine successively, dried over anhydrous sodium sulfate andconcentrated. The residue was dissolved in methanol (5 ml) and theretowas added potassium carbonate (195 mg) and the mixture was stirred for 2hours at room temperature. The organic layer was washed with brine,dried over anhydrous sodium sulfate and concentrated. The residue waswashed with ethyl acetate and filtered and crystallized. The filtratewas concentrated and the residue was washed with t-butyl methyl etherand collected. It was combined with the above crystals and dried to giveN′-acetyl-N′-phenyl-[(3S)-3-cyclohexylcarbonylamino-2-hydroxy-5-methylhexanohydrazide] (335 mg).

TLC: Rf 0.60 (ethyl acetate).

Step 3: To a solution of the compound prepared in step 2 (202 mg) inacetonitrile (5 ml) was added1,1,1-triacetoxy-1,1-dihydro-1,2-benzoiodoxol-3-(1H)-one (Dess-Martinreagent) (254 mg) at room temperature and the mixture was stirred for 15minutes. To the reaction mixture were added ethyl acetate and asaturated aqueous solution of sodium thiosulfate and the mixture wasstirred vigorously for 5 minutes. Extracted organic layer was washedwith a saturated aqueous solution of sodium bicarbonate twice, and brineonce successively, dried over anhydrous sodium sulfate and concentrated.The residue was suspended in ethyl acetate (2 ml) and collected byfiltration and dried to giveN′-acetyl-N′-phenyl-[(3S)-3-cyclohexylcarbonylamino-5-methyl-2-oxohexanohydrazide](89 mg).

TLC: Rf 0.65 (n-hexane:ethyl acetate=2:8);

NMR (100° C.): δ 11.2 (brs, 1H), 7.81 (brd, J=5.8 Hz, 1H), 7.54-7.14 (m,5H), 4.75 (m, 1H), 2.15 (m, 1H), 2.04 (s, 3H), 1.70-1.00 (m, 13H), 0.90(d, J=6.3 Hz, 3H), 0.88 (d, J=6.3 Hz, 3H).

Example 4(1)

N′-acetyl-N′-cyclohexyl-[3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-oxopropanohydrazide]

By the same procedure as described in example 4 using a correspondingcompound, the following compound was given.

TLC: Rf 0.63 (ethyl acetate:methanol=9:1);

NMR: δ 1.00-1.40 (m, 12H), 1.40-1.75 (m, 12H), 1.78 and 1.81 (each s,total 3H), 2.00-2.35 (m, 2H), 3.22 (m, 2H), 3.83 (m, 2H), 4.09 (m, 1H),4.55 (m, 1H), 8.30 (d, 1=6.04 Hz, 1H), 10.82 and 10.89 (each brs, total1H).

Example 5 Preparation of1-(3-cyclohexylcarbonylamino-5,5-dimethyl-2-oxohexanoylamino)-2,5-dioxopyrrolidine

Step 1: To a solution of 3,3-dimethylbutylaldehyde (4.1 g) and methylchloroacetate (4.44 g) in acetonitrile (60 ml) was added sodium hydride(1.57 g) at 60° C. over a period of 75 minutes and the mixture wasrefluxed for 0.5 hours. The reaction mixture was poured into ice-waterand extracted with t-butyl methyl ether, the organic layer was washedwith brine and dried over anhydrous magnesium sulfate and concentrated.The residue was purified by column chromatography on silica gel(n-hexane:ethyl acetate-19:1) to give 5,5-dimethyl-2,3-epoxyhexanoicacid methyl ester (3.68 g).

TLC: Rf 0.53 (n-hexane:ethyl acetate=4:1).

Step 2: To a mixture of the compound prepared in step 1 (2.75 g) andcyclohexanecarbonitrile (3.8 ml) was added borane trifluoride ethercomplex (2.1 ml) at 0° C. and the mixture was stirred for 2 hours atroom temperature. To the reaction mixture were added water, methanol andhydrochloric acid and the mixture was stirred for 4 hours at roomtemperature. The reaction mixture was poured into water and extractedwith ethyl acetate. The organic layer was washed with a saturatedaqueous solution of sodium bicarbonate and brine successively, driedover anhydrous magnesium sulfate and concentrated. The residue waswashed with hexane and dried. The mother liquor was purified by columnchromatography on silica gel (n-hexane:ethyl acetate=2:1) and it wascombined with the above residue to give3-cyclohexylcarbonylamino-5,5-dimethyl-2-hydroxyhexanoic acid methylester (2.76 g).

TLC: Rf 0.34 and 0.23 (n-hexane:ethyl acetate=2:1).

Step 3: To a solution of the compound prepared in step 2 (2.73 g) inmethanol (10 ml) was added hydrazine monohydrate (2.33 g) and themixture was stirred overnight at room temperature. The precipitate wascollected and the mother liquor was washed with brine, and the givensolid product was washed with t-butylmethyl ether and dried to give3-cyclohexylcarbonylamino-5,5-dimethyl-2-hydroxyhexanohydrazide (2.73g).

TLC: Rf 0.32 (ethyl acetate:methanol=9:1).

Step 4: To a solution of the compound prepared in step 3 (299 mg) inacetic acid (2 ml) was added succinic anhydride (110 mg) and the mixturewas refluxed for 1 hour. The reaction mixture was concentrated to give1-(3-cyclohexylcarbonylamino-5,5-dimethyl-2-hydroxyhexanoylamino)-2,5-dioxopyrrolidine(433 mg).

TLC: Rf 0.52 (methylene chloride:methanol=9:1).

Step 5: To a solution of the compound prepared in step 4 (420 mg) inDMSO (2 ml) were added triethylamine (0.42 ml) and sulfurtrioxide-pyridine complex (477 mg) and the mixture was stirred overnightat room temperature. The reaction mixture was poured into 1Nhydrochloric acid and extracted with ethyl acetate. The organic layerwas washed with water, a saturated aqueous solution of sodiumbicarbonate and brine successively, dried over anhydrous magnesiumsulfate and concentrated. The residue was purified by columnchromatography on silica gel (ethyl acetate) to give1-(3-cyclohexylcarbonylamino-5,5-dimethyl-2-oxohexanoylamino)-2,5-dioxopyrrolidine(160 mg).

TLC: Rf 0.56 (methylene chloride:methanol=9:1);

NMR: δ 0.89 (s, 9H), 1.40 (m, 12H), 2.17 (m, 1H), 2.82 (s, 4H), 4.95 (m,1H), 8.12 (d, J=7.14 Hz, 1H), 11.37 (s, 1H).

Example 5(1)-Example 5(21)

By the same procedure as described in example 5, the following compoundswere given.

Example R^(L) R⁷ R^(M) 5(1) cyclohexyl

TLC:Rf 0.49 (ethyl acetate:methanol = 9:1) NMR: δ 11.35 (s, 1H), 8.19(d, J = 6.6 Hz, 1H), 4.78 (t, J = 6.6 Hz, 1H), 3.93-3.70 (m, 2H),3.30-3.10 (m, 2H), 2.81 (s, 4H), 2.32-2.19 (m, 1H), 2.19-2.02 (m, 1H),1.81-1.00 (m, 14H) 5(2) cyclohexyl cyclohexyl

TLC:Rf 0.56 (methylene chloride:methanol = 9:1) NMR: δ 11.31 (s, 1H),8.07 (d, J = 7.2 Hz, 1H), 4.81 (t, J = 6.6 Hz, 1H), 2.81 (s, 4H),2.32-2.21 (m, 1H), 1.89-1.73 (m, 1H), 1.73-0.97 (m, 20H) 5(3) cyclohexylphenyl

TLC:Rf 0.54 (methylene chloride:methanol = 9:1) NMR: δ 11.36 (s, 1H),8.68 (d, J = 5.7 Hz, 1H), 7.50-7.30 (m, 5H), 6.05 (t, J = 5.7 Hz, 1H),2.78 (s, 4H), 2.36-2.24 (m, 1H), 1.84-1.03 (m, 10H) 5(4) cyclohexyl

TLC:Rf 0.33 (methylene chloride:methanol = 10:1) NMR: δ 1.80-0.98 (m,20H), 2.20-2.02 (m, 1H), 2.38-2.21 (m, 1H), 2.80-2.60 (m, 4H), 3.30-3.18(m, 2H), 3.86-3.78 (m, 2H), 4.91 (t, J = 6.87 Hz, 1H), 8.10 (d, J = 7.42Hz, 1H), 11.02 (s, 1H) 5(5) cyclohexyl

TLC:Rf 0.33 (methylene chloride:methanol = 10:1) NMR: δ 1.90-1.00 (m,22H), 2.20-2.02 (m, 1H), 2.38-2.21 (m, 1H), 2.90-2.78 (m, 2H), 3.30-3.16(m, 2H), 3.86-3.75 (m, 2H), 4.98-4.82 (m, 1H), 8.08 (d, J = 7.50 Hz,1H), 10.99 and 10.96 (each s, total 1H) 5(6) cyclohexyl

TLC:Rf 0.57 (n-hexane:ethyl acetate = 1:2) NMR: δ 1.00-1.79 (m, 20H),1.80-1.95 (m, 1H), 2.20-2.38 (m, 1H), 4.62 (s, 4H), 4.80-4.92 (m, 1H),8.04 (d, J = 6.87 Hz, 1H), 11.26 (s, 1H) 5(7) cyclohexyl

TLC:Rf 0.61 (methylene chloride:methanol = 9:1) NMR: δ 11.51 (s, 1H),8.27 (d, J = 6.6 Hz, 1H), 8.08-7.87 (m, 4H), 4.74 (t, J = 6.6 Hz, 1H),3.92-3.73 (m, 2H), 3.27-3.15 (m, 2H), 2.34-2.22 (m, 1H), 2.22-2.05 (m,1H), 1.83-1.03 (m, 14H) 5(8) cyclohexyl (S)-isopropyl

TLC:Rf 0.53 (ethyl acetate) NMR: δ 11.34 (s, 1H), 8.07 (d, J = 7.2 Hz,1H), 4.81 (t-like, J = 7.2 Hz, 1H), 2.81 (s, 4H), 2.35-2.25 (m, 1H),2.20-2.07 (m, 1H), 1.69-1.59 (m, 5H), 1.38-1.05 (m, 5H), 0.89 (d, J =6.0 Hz, 3H), 0.86 (d, J = 6.9 Hz, 3H) 5(9) cyclohexyl

TLC:Rf 0.58 (n-hexane:ethyl acetate = 1:2) NMR: δ 11.31 (s, 1H), 8.08(d, J = 6.6 Hz, 1H), 4.79 (t, J = 6.6 Hz, 1H), 2.75 (s, 2H), 2.32-2.20(m, 1H), 1.93-0.95 (m, 21H), 1.26 (s, 6H) 5(10) cyclohexyl neopentyl

TLC:Rf 0.42 (n-hexane:ethyl acetate = 1:2) NMR: δ 11.35 (s, 1H), 8.13(d, J = 7.2 Hz, 1H), 4.92 (m, 1H), 2.76 (s, 2H), 2.23-2.10 (m, 1H),1.80-1.08 (m, 12H), 1.26 (s, 6H), 0.89 (s, 9H) 5(11) 3,3- dimethylbut-1-enyl

TLC:Rf 0.59 (ethyl acetate) NMR: δ 11.36 (s, 1H), 8.26 (d, J = 6.9 Hz,1H), 6.63 (d, J = 15.6 Hz, 1H), 6.04 (d, J = 15.6 Hz, 1H), 5.01 (t-like,J = 6.6 Hz, 1H), 2.82 (s, 4H), 1.93-1.50 (m, 6H), 1.27-0.99 (m, 5H),1.03 (s, 9H) 5(12) cycloheptyl

TLC:Rf 0.48 (ethyl acetate:methanol = 9:1) NMR (CDCl₃): δ 1.54 (m, 16H),2.29 (m, 2H), 2.87 (s, 4H), 3.38 (m, 2H), 3.98 (m, 2H), 5.06 (m, 1H),6.18 (d, J = 7.97 Hz, 1H), 9.20 (m, 1H) 5(13) cycloheptyl

TLC:Rf 0.61 (ethyl acetate) NMR: δ 1.40 (m, 23H), 2.49 (m, 1H), 2.81 (s,4H), 4.80 (t, J = 6.59 Hz, 1H), 8.05 (d, J = 6.59 Hz, 1H), 11.29 (s, 1H)5(14) cycloheptyl

TLC:Rf 0.61 (ethyl acetate) NMR (CDCl₃): δ 1.55 (m, 23H), 2.31 (m, 1H),2.86 (s, 4H), 5.01 (dd, J = 7.83, 6.18 Hz, 1H), 6.03 (d, J = 7.97 Hz,1H), 8.97 (s, 1H) 5(15) cycloheptyl

TLC:Rf 0.55 (ethyl acetate) NMR(CDCl₃): δ 1.44 (m, 23H), 2.29 (m, 1H),2.87 (s, 4H), 5.03 (dd, J = 7.97, 6.32 Hz, 1H), 6.00 (d, J = 7.97 Hz,1H), 8.86 (s, 1H) 5(16) (1S)-1-(t- butoxycarbonyl- amino)- 3-methyl-butyl

TLC:Rf 0.48 (n-hexane:ethyl acetate 1:3) NMR : δ 0.84 (m, 6H), 1.37 (m,22H), 1.84 (m, 1H), 2.82 (s, 4H), 4.04 (m, 1H), 4.96 (t, J = 6.22 Hz,1H), 6.87 (m, 1H), 8.03 (m, 1H), 11.39 (m, 1H) 5(17) cycloheptyl

TLC:Rf 0.45 (ethyl acetate) NMR (CDCl₃): δ 1.54 (m, 23H), 2.12 (s, 3H),2.32 (m, 1H), 5.25 (dd, J = 8.24, 5.49 Hz, 1H), 6.08 (d, J = 8.52 Hz,1H), 8.93 (s, 1H), 9.46 (s, 1H) 5(18) cycloheptyl

TLC:Rf 0.51 (ethyl acetate:methanol:water = 40:10:1) NMR: δ 1.34 (m,23H), 2.41 (m, 5H), 4.92 (t, J = 6.59 Hz, 1H), 7.92 (d, J = 7.42 Hz,1H), 10.66 (m, 3H) 5(19) (1S)-1- methoxycarbonyl- amino-3- methyl- butyl

TLC:Rf 0.45 (ethyl acetate) NMR (CDCl₃): δ 1.26 (m, 19H), 1.99 (m, 1H),2.80 (m, 4H), 3.68 (s, 3H), 4.21 (m, 1H), 5.17 (m, 2H), 6.82 (m, 1H),9.21 (s, 1H) 5(20) (1S)-1-(t- butoxycarbonyl- amino)- 3-methyl- butyl

TLC:Rf 0.35 (chloroform:methanol = 19:1) NMR: δ 0.87 (m, 6H), 1.35 (m,15H), 1.58 (m, 1H), 2.12 (m, 1H), 2.80 (m, 4H), 3.26 (m, 2H), 3.82 (m,2H), 4.05 (m, 1H), 4.97 (m, 1H), 6.87 (m, 1H), 8.19 (m, 1H), 11.41 (m,1H)

Example 5(21)3-(3-cycloheptylcarbonylamino-3-cyclohexyl-2-oxopropanoyl)-1,2,3,4-tetrahydrophthalazin-1,4-dione

TLC: Rf 0.29 (ethyl acetate);

NMR: δ 1.39 (m, 22H), 1.90 (m, 1H), 2.43 (m, 1H), 2.78 (t, J=6.96 Hz,2H), 3.14 (t, J=6.77 Hz, 2H), 4.88 (t, J=6.32 Hz, 1H), 8.26 (d, J=5.68Hz, 1H), 12.36 (br. s., 1H).

Example 6 Preparation ofN-methyl-N′-(3-methyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-5-methyl-2-oxohexanohydrazide]hydrochloride

Step 1: By the same procedure as described in step 1->step 2->step3->step 4->step 5->step 6 of example 1,N′-(3-methyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-2-hydroxy-5-methylhexanohydrazide]wasgiven.

TLC: Rf 0.55 (methylene chloride:methanol=9:1).

Step 2: To a solution of the compound prepared in step 1 (600 mg) in DMF(5 ml) were added potassium carbonate (258 mg) and methyl iodide (0.116ml) and the mixture was stirred for 2 hours at the same temperature andfor 6 hours at room temperature. To the reaction mixture was added andextracted with ethyl acetate. The organic layer was washed with watertwice and brine once successively, dried over anhydrous sodium sulfateand concentrated. The residue was purified by column chromatography onsilica gel (ethyl acetate:methanol=20:1) to giveN-methyl-N′-(3-methyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-2-hydroxy-5-methylhexanohydrazide](400 mg).

Free Compound

NMR: δ 8.20 and 7.78 (each d, J=9.0 Hz, total 1H), 4.82 and 4.52 (eachm, total 1H), 3.70-3.60 (m, 2H), 3.28-118 (m, 2H), 2.95 and 2.94 (eachs, total 3H), 2.85 and 2.80 (each s, total 3H), 2.28-2.12 (m, 1H),1.80-1.00 (m, 13H), 0.92-0.77 (m, 6H).

Hydrochloride

TLC: Rf 0.19 (ethyl acetate);

NMR: δ 7.27 and 6.94 (each brd, J=9.3 Hz, total 1H), 4.42-3.96 (m, 3H),3.19 (t, J=6.9 Hz, 2H), 3.19 (t, J=6.9 Hz, 2H), 2.88 (s, 6H), 2.10-1.98(m, 1H), 1.70-1.00 (m, 13H), 0.90-0.75 (m, 6H).

Step 3: By the same procedure as described in example 1 using ahydrochloride of the compound prepared in step 2,N-methyl-N′-(3-methyl-1,3-thiazolidin-2-ylidene)[3-cyclohexylcarbonylamino-5-methyl-2-oxohexanohydrazide]hydrochloridewas given.

TLC: Rf 0.70 (ethyl acetate:methanol=9:1);

NMR: δ 8.36 and 7.92 (each m, total 1H), 7.40-6.00 (broad, 1H), 4.80 and4.87 (each in, total 1H), 3.88 and 3.78 (each m, total 2H), 3.40-126 (m,2H), 3.09 and 3.03 (each s, total 3H), 3.05 and 2.91 (each s, total 3H),2.28-2.12 (m, 1H), 1.80-1.00 (m, 13H), 0.93-0.78 (m, total 6H).

Example 7 Preparation ofN′-(3-methyl-4-oxo-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-oxopropanohydrazide]

Step 1: To a solution of 1-hydroxybenzotriazole (77 mg) in DMF (2 ml)were added3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-hydroxypropanoicacid (given by the same procedure as described in step 9 of example 2using the compound prepared in step 4 of example 1; 125 mg) and theretowas added thiosemicarbazide (48 mg) and then thereto was added1-ethyl-3-[3-(dimethylamino)propyl]carbodiimide hydrochloride (96 mg) at0° C. and the mixture was stirred at room temperature. The reactionmixture was poured into a saturated aqueous solution of sodiumbicarbonate and extracted with ethyl acetate. The organic layer waswashed with brine and dried and the residue was washed with ethylacetate to give N′-methylaminothiocarbonyl-3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-hydroxypropanoazide (69 mg).

TLC: Rf 0.28 (CHCl₃:methanol=9:1).

Step 2: To a solution of the compound prepared in step 1 (65 mg) andsodium acetate (21 mg) in ethanol (1.2 ml) was added ethylbromoacetate(31 mg) and the mixture was refluxed. To the reaction mixture was added2N hydrochloric acid (0.15 ml) and the mixture was concentrated. Theresidue was washed with ethyl acetate and dried to giveN′-(3-methyl-4-oxo-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-2-hydroxy-3-(tetrahydropyran-4-yl)propanohydrazide] (76 mg).

TLC: Rf 0.38 (chloroform:methanol=9:1).

Step 3: By the same procedure as described in example 1 using thecompound prepared in step 2,N′-(3-methyl-4-oxo-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-oxopropanohydrazide].

TLC: Rf 0.41 (methylene chloride:methanol=9:1);

NMR: δ 11.14 (s, 1H), 8.06 (d, J=7.2 Hz, 1H), 4.99 (t, J=6.6 Hz, 1H),3.89-3.77 (m, 2H), 3.29-3.13 (m, 2H), 3.10 (s, 3H), 2.38-2.22 (m, 1H),2.20-2.04 (m, 1H), 1.80-1.06 (m, 14H).

Example 7(1)-Example 7(3)

By the same procedure as described in example 7 using a correspondingcompound, the compound of the present invention were given as follows.

Example R⁷ R²⁷ 7(1)

methyl TLC:Rf 0.47 (methylene chloride:methanol = 9:1) NMR: δ 1.12 (s,1H), 7.94 (d, J = 7.5 Hz, 1H), 5.08-4.94 (m, 1H), 4.05 (s, 2H), 3.10 (s,3H), 2.34-2.23 (m, 1H), 1.95-1.78 (m, 1H), 1.78-0.92 (m, 20H) 7(2)

allyl TLC:Rf 0.57 (methanol:methylene chloride = 1:9) NMR: δ 1.00-1.45(m, 9H), 1.55-1.75 (m, 5H), 2.00-2.35 (m, 2H), 3.24 (m, 2H), 3.80 (m,2H), 4.09 (s, 2H), 4.25 (d, J = 4.67 Hz, 2H), 4.95 (t, J = 7.40 Hz, 1H),5.16 (m, 2H), 5.81 (m, 1H), 8.05 (d, J = 7.40 Hz, 1H), 11.14 (s, 1H)7(3)

benzyl TLC:Rf 0.45 (ethyl acetate) NMR: δ 1.00-1.40 (m, 9H), 1.50-1.75(m, 5H), 2.00-2.35 (m, 2H), 3.26 (m, 2H), 3.81 (m, 2H), 4.13 (s, 2H),4.85 (s, 2H), 4.94 (t, J = 7.42 Hz, 1H), 7.20-7.40 (m, 5H), 8.06 (d, J =7.42 Hz, 1H), 11.16 (s, 1H)

Example 8 Preparation ofN′-(3-propyl-1,3-thiazolidin-2-ylidene)-(3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-oxopropanohydrazide)hydrochloride

Step 1: To a solution of potassium hydroxide in methanol (1.0 M, 8.0 ml)was suspended3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-hydroxypropanohydrazide(prepared in step 5 in example 1; 2.0 g) and thereto were added methanol(16 ml) and carbon disulfide (0.46 ml) and the mixture was stirred for 3hours at room temperature and followed by refluxing for 24 hours. Thereaction mixture was poured into iced aqueous solution of citric acidand extracted with ethyl acetate. The organic layer was washed by waterand brine successively, dried over magnesium sulfate and concentrated togive 5-(1-hydroxy-2-cyclohexylcarbonylamino-2-tetrahydropyran-4-ylethyl)-2-thioxo-1,3,4-oxadiazoline(2.41 g).

TLC: Rf 0.61 (ethyl acetate:methanol=9:1).

Step 2: To a solution of the compound prepared in step 1 (650 mg) inN,N-dimethylformamide (10 ml) were addedN-(t-butoxycarbonyl)-N-(2-chloro ethyl)-N-propylamine (763 mg), sodiumiodide (518 mg) and potassium carbonate (477 mg) and the mixture wasstirred overnight at 60° C. The reaction mixture was poured intoice-water and was extracted with ethyl acetate. The organic layer waswashed with water and brine successively, dried over anhydrous magnesiumsulfate and concentrated. The residue was purified by columnchromatography on silica gel (n-hexane:ethyl acetate=1:1) to give1-[5-(N-t-butoxycarbonyl-N-propyl-aminoethylthio)-1,3,4-oxadiazol-2-yl]-2-(tetrahydropyran-4-yl)-2-cyclohexylcarbonylaminoethanol(572 mg).

TLC: Rf 0.44 and 0.35 (ethyl acetate).

Step 3: By the same procedure as described in step 3 of example 4 usingthe compound prepared in step 2 oxidized compound thereof (355 mg) (TLC:Rf 0.37 (n-hexane:ethyl acetate=1:1) was given. The oxidized compound(350 mg) was dissolved in ethyl acetate (2 ml) and thereto was added 4Nhydrochloric acid/ethyl acetate (4 ml) and the mixture was stirred for 1hour at room temperature. The reaction mixture was concentrated to give1-[5-(N-t-butoxycarbonyl-N-propylaminoethylthio)-1,3,4-oxadiazol-2-yl]-2-(tetrahydropyran-4-yl)-2-cyclohexylcarbonylamino-1-oxoethane(315 mg).

NMR: δ 0.90 (t, J=7.42 Hz, 3H), 1.47 (m, 16H), 2.20 (m, 2H), 2.89 (m,2H), 3.23 (m, 4H), 3.65 (t, J=7.14 Hz, 2H), 3.82 (m, 2H), 4.90 (t,J=6.46 Hz, 1H), 8.43 (d, J=6.32 Hz, 1H), 9.07 (m, 2H).

Step 4: A suspension of the compound prepared in step 3 (315 mg) inacetonitrile was stirred for 1 hour at 80° C. The precipitated powderwas collected to giveN′-(3-propyl-1,3-thiazolidin-2-ylidene)-(3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-oxopropanohydrazide)hydrochloride (240 mg).

TLC: Rf 0.54 (methylene chloride:methanol=9:1);

NMR: δ 11.47 (br-s, 1H), 8.21 (d, J=6.6 Hz, 1H), 4.83 (t-like, J=6.0 Hz,1H), 4.01 (t, J=7.2 Hz, 21-1), 3.83 (t-like, J=6.3 Hz, 21-1), 3.49 (t,J=7.2 Hz, 2H), 3.42 (t, J=7.2 Hz, 2H), 3.24 (t, J=9.9 Hz, 2H), 2.33-2.21(m, 1H), 2.16-2.02 (m, 1H), 1.69-1.57 (m, 7H), 1.50-1.04 (m, 9H), 0.89(t, J=7.5 Hz, 3H).

Example 8(1)-Example 8(75)

By the same procedure as described in example 8 using correspondingcompounds, the following compounds were given.

Example R^(L) R⁷ R²⁷ 8(1) cyclohexyl (S)-isobutyl 3-methyl hydro- TLC:Rf0.60 (methylene chloride chloride:methanol:acetic acid = 9:1:0.1) NMR: δ11.6 (brs, 1H), 8.20 (brd, J = 5.7 Hz, 1H), 6.40-5.20 (broad, 1H), 4.89(m, 1H), 4.01 (brt, J = 7.8 Hz, 2H), 3.41 (brt, J = 7.8 Hz, 2H), 3.13(s, 3H), 2.19 (m, 1H), 1.80-1.00 (m, 13H), 0.89 and 0.86 (each d, J =6.6 Hz, total 6H) 8(2) 4-bromophenyl (S)-isobutyl 3-methyl hydro- TLC:Rf0.55 (methylene chloride chloride:methanol:acetic acid = 9:1:0.1) NMR: δ11.7 (brs, 1H), 9.04 (brd, J = 6.0 Hz, 1H), 7.84 (d, J = 8.7 Hz, 2H),7.70 (d, J = 8.7 Hz, 2H), 6.00-5.20 (broad, 1H), 5.10 (m, 1H), 4.03(brt, J = 7.5 Hz, 2H), 3.41 (brt, J = 7.5 Hz, 2H), 3.16 (s, 3H),1.80-1.50 (m, 3H), 0.93 and 0.91 (each d, J = 6.0 Hz, total 6H) 8(3)cyclohexyl (S)-isopropyl 3-methyl hydro- TLC:Rf 0.43 (methylenechloride:methanol = 9:1) chloride NMR: δ 11.5 (brs, 1H), 8.11 (brd, J =6.6 Hz, 1H), 7.20-6.00 (broad, 1H), 4.83 (t, J = 6.6 Hz, 1H), 3.99 (brt,J = 7.5 Hz, 2H), 3.39 (brt, J = 7.5 Hz, 2H), 3.11 (s, 3H), 2.29 (m, 1H),2.15 (m, 1H), 1.80-1.55 (m, 5H), 1.40-1.00 (m, 5H), 0.88 and 0.86 (eachd, J = 6.3 Hz, total 6H) 8(4) cycloheptyl (S)-neopentyl 3-methyl hydro-TLC:Rf 0.39 (methylene chloride:methanol = 20:1) chloride NMR: δ 11.46(s, 1H), 8.12 (d, J = 6.9 Hz, 1H), 5.00-4.92 (m, 1H), 3.97 (t, J = 6.9Hz, 2H), 3.39 (t, J = 6.9 Hz, 2H), 3.10 (s, 3H), 2.40-2.24 (m, 1H),1.78-1.33 (m, 14H), 0.90 (s, 9H) 8(5) 1-benzoylaminocyclo isobutyl3-methyl hexyl free compound NMR: δ 10.62 (s, 1H), 8.00-7.40 (m, 7H),5.17-5.02 (m, 1H), 3.58 (t, J = 6.9 Hz, 2H), 3.17 (t, J = 6.9 Hz, 2H),2.86 (s, 3H), 1.80-1.20 (m, 13H), 0.95-0.75 (m, 6H) hydrochloride TLC:Rf0.63 (methylene chloride:methanol = 10:1) NMR: δ 11.42 (s, 1H),7.80-7.38 (m, 7H), 5.00-4.88 (m, 1H), 3.94 (t, J = 6.9 Hz, 2H), 3.37 (t,J = 6.9 Hz, 2H), 3.08 (s, 3H), 2.30-2.00 (m, 2H), 1.82-1.15 (m, 11H),0.95-0.70 (m, 6H) 8(6) cyclohexyl (S,S)-s-butyl 3-methyl hydro- TLC:Rf0.77 (methylene chloride:methanol = 9:1) chloride NMR: δ 11.5 (brs, 1H),8.09 (brd, J = 6.0 Hz, 1H), 6.00-5.20 (broad, 1H), 4.89 (m, 1H), 3.97(brt, J = 7.5 Hz, 2H), 3.39 (brt, J = 7.5 Hz, 2H), 3.09 (s, 3H), 2.28(m, 1H), 1.90 (m, 1H), 1.80-1.00 (m, 12H), 0.85 (d, J = 6.9 Hz, 3H),0.83 (t, J = 7.5 Hz, 3H) 8(7) cyclohexyl (S)-benzyl 3-methyl hydro-TLC:Rf 0.48 (methylene chloride:methanol = 9:1) chloride NMR: δ 11.46(s, 1H), 8.29 (d, 15.7 Hz, 1H), 7.30-7.17 (m, 5H), 5.03 (br-m, 1H), 3.96(t, J = 6.6 Hz, 2H), 3.38 (t, J = 6.6 Hz, 2H), 3.22-3.00 (m, 1H), 3.09(s, 3H), 2.89-2.71 (m, 1H), 2.20-2.05 (m, 1H), 1.64-1.56 (m, 5H),1.25-1.01 (m, 5H) 8(8) cyclohexyl (S)-t-butyl 3-methyl hydro- TLC:Rf0.39 (ethyl acetate:methanol = 9:1) chloride NMR: δ 11.49 (s, 1H), 8.08(d, J = 5.7 Hz, 1H), 4.97 (d, J = 5.7 Hz, 1H), 4.02 (t, J = 7.8 Hz, 2H),3.40 (t, J = 7.8 Hz, 2H), 3.13 (s, 3H), 2.42-2.30 (m, 1H), 1.67-1.58 (m,5H), 1.34-1.06 (m, 5H), 0.94 (s, 9H) 8(9) cyclohexyl (S)-butyl 3-methylhydro- TLC:Rf 0.58 (methylene chloride:methanol = 9:1) chloride NMR: δ11.42 (s, 1H), 8.19 (d, J = 5.7 Hz, 1H), 4.86-4.77 (m, 1H), 3.96 (t, J =7.2 Hz, 2H), 3.38 (t, J = 7.2 Hz, 2H), 3.08 (s, 3H), 2.27-2.13 (m, 1H),1.80-1.45 (m, 7H), 1.29-1.02 (m, 9H), 0.85 (t, J = 6.3 Hz, 3H) 8(10)cyclohexyl neopentyl 3-methyl hydro- TLC:Rf 0.50 (methylenechloride:methanol = 9:1) chloride NMR: δ 11.57 (brs, 1H), 8.16 (d, J =6.3 Hz, 1H), 5.02-4.92 (m, 1H), 4.01 (t, J = 7.5 Hz, 2H), 3.41 (t, J =7.5 Hz, 2H), 3.13 (s, 3H), 2.22-2.08 (m, 1H), 1.85-1.00 (m, 12H), 0.90(s, 9H) 8(11) cyclohexyl 2-methyl-2-methoxy- 3-methyl hydro- propylchloride TLC:Rf 0.50 (methylene chloride:methanol = 9:1) NMR: δ 11.28(brs, 1H), 8.16 (d, J = 3.6 Hz, 1H), 5.02-4.92 (m, 1H), 4.03 (t, J = 7.5Hz, 2H), 3.42 (t, J = 7.5 Hz, 2H), 3.13 (s, 3H), 2.92 (s, 3H), 2.22-2.07(m, 1H), 2.05-1.02 (m, 12H), 1.19 and 1.08 (each s, total 6H) 8(12)methyl (S)-isobutyl 3-methyl hydro- TLC:Rf 0.46 (methylenechloride:methanol = 10:1) chloride NMR: δ 11.53 (s, 1H), 8.41 (d, J =6.0 Hz, 1H), 4.94-4.82 (m, 1H), 4.00 (t, J = 7.5 Hz, 2H), 3.40 (t, J =7.5 Hz, 2H), 3.12 (s, 3H), 1.85 (s, 3H), 1.78-1.60 (m, 1H), 1.54-1.36(m, 2H), 0.90 and 0.87 (each d, J = 6.6 Hz, total 6H) 8(13) hydro-chloride

(S)-isobutyl 3-methyl TLC:Rf 0.46 (methylene chloride:methanol = 10:1)NMR: δ 11.39 (s, 1H), 7.26 (d, J = 6.0 Hz, 1H), 5.02-4.85 (m, 1H),4.02-3.88 (m, 2H), 3.87-3.76 (m, 2H), 3.44-3.32 (m, 2H), 3.31-3.21 (m,2H), 3.07 (s, 3H), 2.48-2.30 (m, 1H), 1.75-1.38 (m, 7H), 0.91-0.75 (m,6H) 8(14) t-butyl (S)-isobutyl 3-methyl hydro- TLC:Rf 0.56 (methylenechloride:methanol = 10:1) chloride NMR: δ 11.60 (s, 1H), 7.27 (d, J =9.6 Hz, 1H), 4.94-4.78 (m, 1H), 4.14-3.96 (m, 2H), 3.54-3.36 (m, 2H),3.17 (s, 3H), 1.80-1.40 (m, 3H), 1.10 (s, 9H), 0.97-0.70 (m, 6H) 8(15)phenyl (S)-isobutyl 3-methyl hydro- TLC:Rf 0.51 (methylenechloride:methanol = 10:1) chloride NMR: δ 11.59 (s, 1H), 8.90 (d, J =6.3 Hz, 1H), 8.00-7.40 (m, 5H), 5.18-5.04 (m, 1H), 3.99 (t, J = 7.5 Hz,2H), 3.38 (t, J = 7.5 Hz, 2H), 3.12 (s, 3H), 1.80-1.52 (m, 3H),1.05-0.80 (m, 6H) 8(16) cycloheptyl (S)-isobutyl 3-methyl hydro- TLC:Rf0.54 (methylene chloride:methanol = 10:1) chloride NMR: δ 11.52 (s, 1H),8.19 (d, J = 6.0 Hz, 1H), 4.85-4.82 (m, 1H), 4.00 (t, J = 7.5 Hz, 2H),3.41 (t, J = 7.5 Hz, 2H), 3.12 (s, 3H), 2.40-2.30 (m, 1H), 1.90-1.30 (m,15H), 0.98-0.78 (m, 6H) 8(17) cyclohexyl isobutyl 3-methyl hydro- TLC:Rf0.48 (methylene chloride:methanol = 9:1) chloride NMR (100° C.): δ 7.67(br, 1H), 5.02-4.91 (m, 1H), 3.92-3.82 (m, 2H), 3.61-3.48 (m, 2H), 3.31(t, J = 7.2 Hz, 2H), 2.26-2.17 (m, 1H), 1.73-1.16 (m, 13H), 1.18 (t, J =7.2 Hz, 3H), 0.91 (d, J = 6.3 Hz, 3H), 0.89 (d, J = 6.3 Hz, 3H) 8(18)cyclohexyl (S)-isobutyl 3-methyl hydro- TLC:Rf 0.57 (methylenechloride:methanol = 9:1) chloride NMR (100° C.): δ 7.64 (br, 1H),5.02-4.91 (m, 1H), 3.93-3.83 (m, 2H), 3.48 (t, J = 6.9 Hz, 2H), 3.32 (t,J = 7.2 Hz, 2H), 2.26-2.18 (m, 1H), 1.73-1.12 (m, 15H), 0.92 (t, J = 7.5Hz, 3H), 0.92 (d, J = 5.4 Hz, 3H), 0.90 (d, J = 5.4 Hz, 3H) 8(19)cycloheptyl neopentyl 3-methyl hydro- TLC:Rf 0.63 (methylenechloride:methanol = 9:1) chloride NMR: δ 11.5 (brs, 1H), 8.13 (brd, J =6.3 Hz, 1H), 6.00-5.00 (broad, 1H), 4.95 (m, 1H), 4.00 (brt, J = 7.5 Hz,2H), 3.41 (brt, J = 7.5 Hz, 2H), 3.11 (s, 3H), 2.33 (m, 1H), 1.90-1.30(m, 14H), 0.90 (s, 9H) 8(20) benzyl (S)-isobutyl 3-methyl hydro- TLC:Rf0.63 (methylene chloride:methanol = 10:1) chloride NMR: δ 11.63 (s, 1H),8.70 (d, J = 5.1 Hz, 1H), 7.38-7.15 (m, 5H), 5.00-4.86 (m, 1H), 4.02 (t,J = 7.8 Hz, 2H), 3.49 (s, 2H), 3.40 (t, J = 7.8 Hz, 2H), 3.14 (s, 3H),1.78-1.60 (m, 1H), 1.58-1.42 (m, 2H), 0.95-0.75 (m, 6H) 8(21)phenoxymethyl (S)-isobutyl 3-methyl hydro- TLC:Rf 0.60 (methylenechloride:methanol = 10:1) chloride NMR: δ 11.63 (s, 1H), 8.67 (d, J =6.9 Hz, 1H), 7.38-6.85 (m, 5H), 5.18-4.98 (m, 1H), 4.56 (s, 2H), 4.00(t, J = 7.5 Hz, 2H), 3.39 (t, J = 7.5 Hz, 2H), 3.13 (s, 3H), 1.70-1.40(m, 3H), 0.95-0.78 (m, 6H) 8(22) cyclohexyl (S)-isobutyl 3-benzyl hydro-TLC:Rf 0.69 (methylene chloride:methanol = 9:1) chloride NMR: δ 11.30(br-s, 1H), 8.13 (d, J = 7.2 Hz, 1H), 7.42-7.39 (m, 5H), 5.02-4.90 (m,1H), 4.76 (s, 2H), 3.78 (t, J = 7.2 Hz, 2H), 3.33 (t, J = 7.2 Hz, 2H),2.23-2.16 (m, 1H), 1.69-1.18 (m, 13H), 0.89 (d, J = 6.9 Hz, 3H), 0.87(d, J = 6.9 Hz, 3H) 8(23) cyclohexyl (S)-isobutyl 3-isopropyl hydro-TLC:Rf 0.63 (methylene chloride:methanol = 9:1) chloride NMR (100° C.):δ 7.60 (br-m, 1H), 5.00 (br-m, 1H), 4.43-4.27 (m, 1H), 3.75 (t, J = 6.9Hz, 2H), 3.23 (t, J = 6.9 Hz, 2H), 2.28-2.17 (m, 1H), 1.73-1.15 (m,19H), 0.91 (d, J = 6.6 Hz, 3H), 0.90 (d, J = 6.6 Hz, 3H) 8(24) hydro-chloride cyclohexyl

3-methyl TLC:Rf 0.56 (methanol:methylene chloride = 1:9) NMR: δ 11.37(brs, 1H), 8.17 (brd, J = 6.3 Hz, 1H), 4.85 (m, 1H), 4.80-4.10 (br, 1H),3.97 (t, J = 7.5 Hz, 2H), 3.79 (m, 2H), 3.37 (t, J = 7.5 Hz, 2H), 3.21(m, 2H), 3.06 (s, 3H), 2.25 (m, 1H), 2.10 (m, 1H), 1.80-1.00 (m, 14H)8(25) hydro- chloride cyclohexyl

3-methyl TLC:Rf 0.61 (methanol:methylene chloride = 1:9) NMR: δ 11.41(brs, 1H), 8.07 (brd, J = 6.3 Hz, 1H), 4.85 (m, 1H), 5.30-4.70 (br, 1H),3.95 (t, J = 6.0 Hz, 2H), 3.38 (t, J = 6.0 Hz, 2H), 3.08 (s, 3H), 2.30(m, 1H), 1.90-1.00 (m, 21H) 8(26) hydro- chloride

(S)-isobutyl 3-methyl TLC:Rf 0.68 (methylene chloride:methanol = 10:1)NMR: δ 11.49 (s, 1H), 8.45 (d, J = 5.7 Hz, 1H), 6.63 (d, J = 15.6 Hz,1H), 5.91 (d, J = 15.6 Hz, 1H), 5.02-4.92 (m, 1H), 4.02-3.88 (m, 2H),3.39 (t, J = 7.2 Hz, 2H), 3.09 (s, 3H), 1.80-1.40 (m, 3H), 1.02 (s, 9H),0.94-0.74 (m, 6H) 8(27) cyclohexyl (S)-isobutyl 3-(2- hydro- hydroxy-chloride ethyl) TLC:Rf 0.48 (ethyl acetate:methanol:water = 40:10:1) NMR(100° C.): δ 7.60 (br-m, 1H), 4.97 (br-m, 1H), 3.89 (t, J = 6.0 Hz, 2H),3.72-3.63 (m, 1H), 3.57-3.50 (m, 2H), 3.27 (t, J = 6.0 Hz, 2H),2.25-2.16 (m, 1H), 1.77-1.16 (m, 13H), 0.90 (d, J = 6.0 Hz, 3H), 0.88(d, J = 6.0 Hz, 3H) 8(28) cyclohexyl cyclopropyl 3-methyl hydro- TLC:Rf0.53 (methylene chloride:methanol = 9:1) chloride NMR: δ 11.55 (brs,1H), 8.45 (d, J = 4.8 Hz, 1H), 4.18 (dd, J = 9.0, 4.8 Hz, 1H), 4.02 (t,J = 7.2 Hz, 2H), 3.41 (t, J = 7.2 Hz, 2H), 3.15 and 3.14 (each s, total3H), 2.30-2.13 (m, 1H), 1.78-1.02 (m, 10H), 1.02-0.87 (m, 1H), 0.60-0.20(m, 4H) 8(29) cyclohexyl cyclopentyl 3-methyl hydro- TLC:Rf 0.56(methylene chloride:methanol = 9:1) chloride NMR: δ 11.4 (brs, 1H), 8.20(brd, J = 5.7 Hz, 1H), 7.00-6.00 (broad, 1H), 4.83 (m, 1H), 3.97 (t, J =7.8 Hz, 2H), 3.38 (t, J = 7.8 Hz, 2H), 3.09 (s, 3H), 2.30-2.10 (m, 2H),1.80-1.00 (m, 18H) 8(30) cyclohexyl 2-propylbutyl 3-methyl hydro- TLC:Rf0.37 (methylene chloride:isopropanol = 19:1) chloride NMR: δ 11.49 (s,1H), 7.88 (d, J = 7.5 Hz, 1H), 5.21-5.18 (m, 1H), 3.95 (t, J = 7.2 Hz,2H), 3.38 (t, J = 7.2 Hz, 2H), 3.09 (s, 3H), 2.40-2.37 (m, 1H),2.03-1.90 (m, 1H), 1.77-1.55 (m, 5H), 1.43-1.02 (m, 13H), 0.86-0.79 (m,6H) 8(31) cyclohexyl phenyl 3-methyl hydro- TLC:Rf 0.41 (methylenechloride:methanol = 9:1) chloride NMR: δ 11.42 (brs, 1H), 8.60 (brd, J =5.7 Hz, 1H), 7.41-7.27 (m, 5H), 6.10 (brd, J = 5.7 Hz, 1H), 3.90 (t, J =7.5 Hz, 2H), 3.31 (t, J = 7.5 Hz, 2H), 3.02 (s, 3H), 2.40-2.23 (m, 1H),1.80-1.50 (m, 5H), 1.40-1.00 (m, 5H) 8(32) 2-methylpropyloxy(S)-isobutyl 3-methyl hydro- TLC:Rf 0.71 (methylene chloride:methanol =10:1) chloride NMR: δ 0.78-0.95 (m, 12H), 1.40-1.90 (m, 4H), 2.99 (s,3H), 3.24-3.30 (m, 2H), 3.75 (d, J = 6.59 Hz, 4H), 4.60-5.20 (m, 1H),6.80-7.02 (m, 1H) 8(33) dihydro- chloride cyclohexyl

3-methyl TLC:Rf 0.25 (ethyl acetate:acetic acid:water = 3:1:1) NMR: δ1.01-1.80 (m, 14H), 2.11 (m, 1H), 2.23 (m, 1H), 2.81 (m, 2H), 3.09 (s,3H), 3.21 (m, 2H), 3.37 (t, J = 7.2 Hz, 2H), 3.94 (t, J = 7.2 Hz, 2H),4.78 (m, 1H), 5.10-5.90 (broad, 1H), 8.39 (d, J = 5.5 Hz, 1H), 8.75(brs, 1H), 9.11 (brs, 1H), 11.39 (brs, 1H) 8(34) hydro- chloridecyclohexyl

3-benzyl TLC:Rf 0.50 (methylene chloride:methanol = 9:1) NMR: δ1.04-1.44 (m, 9H), 1.09-1.58 (m, 5H), 2.04-2.20 (m, 1H), 2.25-2.32 (m,1H), 3.20-3.30 (m, 4H), 3.72 (t, J = 6.9 Hz, 2H), 3.80-3.85 (m, 2H),4.71 (s, 2H), 4.94 (t-like, J = 6.6 Hz, 1H), 7.30-7.42 (m, 5H), 8.22 (d,J = 6.6 Hz, 1H), 11.20 (br-s, 1H) 8(35) cyclohexyl

3-methyl free compound NMR: δ 1.04-1.79 (m, 10H), 1.95 (s, 3H), 2.12 (m,1H), 2.26 (m, 1H), 2.43 (m, 2H), 2.86 (s, 3H), 2.95 (m, 2H), 3.17 (t, J= 7.0 Hz, 2H), 3.58 (t, J = 7.0 Hz, 2H), 3.80 (m, 2H), 4.35 (m, 2H),5.08 (m, 1H), 7.92 (d, J = 7.7 Hz, 1H), 10.65 (s, 1H) hydrochlorideTLC:Rf 0.46 (methylene chloride:methanol = 9:1) NMR: δ 0.98-1.81 (m,14H), 1.95 (s, 3H), 2.08 (m, 1H), 2.26 (m, 1H), 2.42 (m, 1H), 2.95 (m,1H), 3.05 (s, 3H), 3.35 (t, J = 7.2 Hz, 2H), 3.81 (m, 1H), 3.91 (m, 2H),4.35 (m, 1H), 4.69-5.09 (m, 2H), 8.15 (m, 1H), 11.33 (brs, 1H) 8(36)(1R,2S)-2-benzoyl- (S)-isobutyl 3-methyl hydro- amino- chloridecyclohexyl TLC:Rf 0.74 (methylene chloride:methanol = 10:1) NMR: δ 0.64(d, J = 6.32 Hz, 3H), 0.72 (d, J = 6.32 Hz, 3H), 1.26-2.05 (m, 11H),2.70-2.80 (m, 1H), 3.00 (s, 3H), 3.26-3.35 (m, 2H), 3.80-3.90 (m, 2H),4.25-4.60 (m, 2H), 4.95-5.05 (m, 1H), 7.37-7.56 (m, 3H), 7.73-7.80 (m,3H), 8.20 (d, J = 7.14 Hz, 1H), 11.22 (s, 1H) 8(37) 3,4-dihydro-(S)-isopropyl 3-methyl hydro- 5-methoxy- chloride carbonylamino-4-oxo-2-phenylpyrimidine- 3-ylmethyl TLC:Rf 0.41 (methylene chloride:methanol= 9:1) NMR: δ 0.77 (d, J = 6.6 Hz, 3H), 0.85 (d, J = 6.6 Hz, 3H), 2.14(m, 1H), 3.09 (s, 3H), 3.37 (t, J = 7.2 Hz, 2H), 3.68 (s, 3H), 3.96 (t,J = 7.2 Hz, 2H), 4.56 (s, 2H), 5.01 (m, 1H), 6.00-5.30 (broad, 1H),7.32-7.70 (m, 5H), 8.42 (s, 1H), 8.57 (d, J = 7.4 Hz, 1H), 8.79 (s, 1H),11.57 (brs, 1H) 8(38) cyclohexyl 2-ethylpropyl 3-methyl hydro- TLC:Rf0.73 (methylene chloride:methanol = 10:1) chloride NMR: δ 0.75-0.90 (m,6H), 1.05-1.85 (m, 15H), 2.23-2.40 (m, 1H), 3.10 (s, 3H), 3.32-3.45 (m,2H), 3.90-4.05 (m, 2H), 5.12-5.24 (m, 1H), 7.92 (d, J = 7.42Hz, 1H),11.53 (s, 1H) 8(39) cyclohexyl

3-methyl free compound NMR: δ 1.22 (m, 23H), 2.07 (m, 1H), 2.26 (m, 1H),2.63 (m, 2H), 2.86 (s, 3H), 3.17 (t, J = 6.8 Hz, 2H), 3.58 (t, J = 6.8Hz, 2H), 3.91 (m, 2H), 5.10 (m, 1H), 7.92 (d, J = 5.8 Hz, 1H), 10.65(brs, 1H) hydrochloride TLC:Rf 0.51 (methylene chloride:methanol = 9:1)NMR: δ 0.98-1.81 (m, 23H), 2.05 (m, 1H), 2.26 (m, 1H), 2.65 (m, 2H),3.06 (s, 3H), 3.36 (t, J = 7.6 Hz, 2H), 3.86-3.96 (m, 4H), 4.89 (m, 1H),5.90-5.10 (broad, 1H), 8.16 (d, J = 6.59 Hz, 1H), 1.38 (s, 1H) 8(40)free compound cyclohexyl

3-methyl TLC:Rf 0.44 (ethyl acetate:methanol = 9:1) NMR: δ 1.40-1.03 (m,5H), 1.72-1.01 (m, 5H), 2.29 (t-like, J = 6.9 Hz, 1H), 2.82 (s, 3H),3.12 (t, J = 6.3 Hz, 2H), 3.54 (t, J = 6.3 Hz, 2H), 6.31 (d, J = 6.9 Hz,1H), 7.54 (d, J = 8.4 Hz, 2H), 7.75 (d, J = 8.4 Hz, 2H), 8.62 (d, J =6.9 Hz, 1H), 1..68 (s, 1H) 8(41) cyclohexyl

3-methyl free compound NMR: (CDCl₃): δ 7.38 (d, J = 9.0 Hz, 2H), 6.87(d, J = 9.0 Hz, 2H), 6.43-6.38 (m, 2H), 3.77 (s, 3H), 3.61 (t, J = 7.2Hz, 2H), 3.50-3.35 (m, 2H), 2.91 (s, 3H), 2.19 (m, 1H), 2.00-1.19 (m,10H) hydrochloride TLC:Rf 0.33 (methylene chloride:methanol = 9:1) NMR:δ 1.00-1.40 (m, 5H), 1.50-1.80 (m, 5H), 2.27 (m, 1H), 3.05 (s, 3H), 3.34(t, J = 7.69 Hz, 2H), 3.73 (s, 3H), 3.97 (m, 2H), 4.42 (m, 1H), 6.05 (d,J = 5.49 Hz, 1H), 6.94 (d, J = 8.52 Hz, 1H), 7.26 (d, J = 8.52 Hz, 2H),8.57 (d, J = 5.49 Hz, 1H), 11.47 (s, 1H) 8(42) cyclohexyl

3-methyl TLC:Rf 0.51 (methylene chloride:methanol = 9:1) NMR: δ 1.39 (m,14H), 1.96 (m, 1H), 2.27 (m, 1H), 2.64 (m, 2H), 2.83 (s, 3H), 3.04 (s,3H), 3.35 (t, J = 7.3 Hz, 2H), 3.55 (m, 2H), 3.90 (t, J = 7.3 Hz, 2H),4.90 (m, 1H), 4.90-5.50 (brd, 1H), 8.22 (d, J = 5.5 Hz, 1H), 11.31 (brs,1H) 8(43) cyclohexyl 2-methylphenyl 3-methyl hydro- TLC:Rf 0.36(methylene chloride:methanol = 9:1) chloride NMR: δ 1.05-1.41 (m, 5H),1.59-1.72 (m, 5H), 2.26-2.32 (m, 1H), 2.39 (s, 3H), 3.02 (m, 3H), 3.32(t, J = 7.5 Hz, 2H), 3.90 (t, J = 7.5 Hz, 2H), 6.34 (d, J = 6.6 Hz, 1H),7.00 (d, J = 7.2 Hz, 1H), 7.17-7.26 (m, 3H), 8.43 (d, J = 6.6 Hz, 1H),11.56 (br-s, 1H) 8(44) 2-methylpropyloxy 2-methylphenyl 3-methyl hydro-TLC:Rf 0.52 (methylene chloride:methanol = 9:1) chloride NMR (100° C.):δ 0.88 (d, J = 6.8 Hz, 6H), 1.79-1.92 (m, 1H), 2.43 (s, 3H), 2.91 (s,3H), 3.19 (t, J = 7.1 Hz, 2H), 3.66 (t, J = 7.1 Hz, 2H), 3.78 (d, J =6.4 Hz, 2H), 6.26-6.32 (m, 1H), 7.03-7.29 (m, 5H) 8(45) methoxy2-methylphenyl 3-methyl hydro- TLC:Rf 0.50 (methylene chloride:methanol= 9:1) chloride NMR (100° C.): δ 2.43 (s, 3H), 2.91 (s, 3H), 3.21 (t, J= 7.3 Hz, 2H), 3.59 (s, 3H), 3.68 (t, J = 7.3 Hz, 2H), 6.28 (d, J = 6.6Hz, 1H), 7.03-7.24 (m, 4H), 7.30-7.41 (m, 1H) 8(46) 2-methylpropyloxy2,5-dimethylphenyl 3-methyl hydro- TLC:Rf 0.55 (methylenechloride:methanol = 9:1) chloride NMR: δ 0.85 (d, J = 6.6 Hz, 6H),1.74-1.89 (m, 1H), 2.27 (s, 6H), 2.96 (s, 3H), 3.17-3.30 (m, 2H), 3.75(d, J = 6.6 Hz, 2H), 3.85 (t, J = 7.4 Hz, 2H), 6.27 (d, J = 7.1 Hz, 1H),6.99-7.11 (m, 3H), 7.75 (br-s, 1H), 11.58 (br-s, 1H) 8(47) cyclohexyl2-chlorophenyl 3-methyl hydro- TLC:Rf 0.53 (methylene chloride:methanol= 9:1) chloride NMR: δ 11.62 (s, 1H), 8.69 (d, J = 6.3 Hz, 1H),7.56-7.14 (m, 4H), 6.38 (d, J = 6.3 Hz 1H), 3.96 (t, J = 7.2 Hz, 2H),3.36 (t, J = 7.2 Hz, 2H), 3.08 (s, 3H), 2.32-2.17 (m, 1H), 1.83-1.02 (m,10H) 8(48) cyclohexyl 2-methoxyphenyl 3-methyl hydro- TLC:Rf 0.69(methylene chloride:methanol = 10:1) chloride NMR: δ 1.05-1.85 (m, 10H),2.20-2.35 (m, 1H), 3.03 (s, 3H), 3.34 (t, J = 7.55 Hz, 2H), 3.76 (s,3H), 3.92 (t, J = 7.28 Hz, 2H), 6.29 (d, J = 6.59 Hz, 1H), 6.90-7.40 (m,4H), 8.31 (d, J = 7.14 Hz, 1H), 11.42 (s, 1H) 8(49) 2-methylpropyloxy2-methoxyphenyl 3-methyl hydro- TLC:Rf 0.61 (methylene chloride:methanol= 10:1) chloride NMR: δ 0.87 (d, J = 6.32 Hz, 6H), 1.73-1.90 (m, 1H),3.04 (s, 3H), 3.20-3.45 (m, 2H), 3.60-1.83 (m, 5H), 3.85-4.00 (m, 2H),6.18 (d, J = 7.97 Hz, 1H), 6.82-7.40 (m, 4H), 7.76 (d, J = 7.69 Hz, 1H),11.53 (s, 1H) 8(50) cyclohexyl (S)-isobutyl 3,5,5- hydro- trimethylchloride TLC:Rf 0.65 (methylene chloride:methanol = 9:1) NMR: δ 11.45(brs, 1H), 8.21 (d, J = 6.0 Hz, 1H), 4.93-4.78 (m, 1H), 3.84 (s, 2H),3.16 (brs, 3H), 2.27-2.10 (m, 1H), 1.83-1.02 (m, 13H), 1.51 (s, 6H),0.89 and 0.86 (each d, J = 6.6 Hz, total 6H) 8(51) hydro- chloridecyclohexyl

3,5,5- trimethyl TLC:Rf 0.47 (methylene chloride:methanol = 9:1) NMR: δ11.40 (brs, 1H), 8.23 (d, J = 6.0 Hz, 1H), 4.84-4.72 (m, 1H), 3.93-3.70(m, 2H), 3.82 (s, 2H), 3.33-3.16 (m, 2H), 3.14 (s, 3H), 2.33-2.20 (m,1H), 2.17-2.00 (m, 1H), 1.78-1.05 (m, 14H), 1.51 (s, 6H) 8(52)cycloheptyl

3-methyl free compound TLC:Rf 0.38 (methylene chloride:methanol = 9:1)NMR: δ 11.44 (s, 1H), 8.20 (d, J = 6.3 Hz, 1H), 4.83 (t-like, J = 5.4Hz, 1H), 3.96 (t, J = 7.5 Hz, 2H), 3.89-3.77 (m, 2H), 3.38 (t, J = 7.5Hz, 2H), 3.24 (t, J = 10.5 Hz, 2H), 3.09 (s, 3H), 2.57-2.41 (m, 1H),2.16-2.00 (m, 1H), 1.77-1.29 (m, 16H) hydrochloride TLC:Rf 0.37(methylene chloride:methanol = 9:1) NMR (CDCl₃): δ 1.67 (m, 16H), 2.36(m, 2H), 3.04 (s, 3H), 3.25 (t, J = 6.87 Hz, 2H), 3.35 (m, 2H), 3.65 (t,J = 6.87 Hz, 2H), 3.95 (m, J = 10.71 Hz, 2H), 5.15 (m, 1H), 6.44 (d, J =9.07 Hz, 1H), 8.73 (s, 1H) 8(53) cyclohexyl (S)-isopropyl 3-propylhydro- TLC:Rf 0.47 (methylene chloride:methanol = 9:1) chloride NMR: δ11.56 (br-s, 1H), 8.12 (d, J = 6.9 Hz, 1H), 4.82 (t-like, J = 6.0 Hz,1H), 4.04 (t, J = 7.2 Hz, 2H), 3.53 (t, J = 7.2 Hz, 2H), 3.14 (t, J =7.2 Hz, 2H), 2.33-2.27 (m, 1H), 2.21-2.09 (m, 1H), 1.65-1.58 (m, 7H),1.37-1.08 (m, 5H), 0.92-0.85 (m, 9H) 8(54) cyclohexyl (S)-isopropyl3-benzyl hydro- TLC:Rf 0.57 (n-hexane:ethyl acetate = 1:3) chloride NMR:δ 11.32 (br-s, 1H), 8.05 (d, J = 7.5 Hz, 1H), 7.43-7.33 (m, 5H), 4.91(t-like, J = 6.0 Hz, 1H), 4.80-4.70 (m, 2H), 3.77 (t, J = 7.2 Hz, 2H),3.33 (t, J = 7.2 Hz, 2H), 2.36-2.12 (m, 2H), 1.70-1.58 (m, 5H),1.38-1.05 (m, 5H), 0.89 (d, J = 6.9 Hz, 3H), 0.85 (d, J = 6.9 Hz, 3H)8(55) hydro- chloride cyclohexyl

3-methyl TLC:Rf 0.52 (methylene chloride:methanol = 9:1) NMR: δ0.88-1.96 (m, 21H), 2.28 (m, 1H), 3.10 (s, 3H), 3.39 (t, J = 7.5 Hz,2H), 3.98 (t, J = 7.5 Hz, 2H), 4.86 (m, 1H), 4.91-6.15 (broad, 1H), 8.09(d, J = 6.0 Hz, 1H), 11.47 (brs, 1H) 8(56) cycloheptyl

3-benzyl TLC:Rf 0.53 (ethyl acetate) NMR: δ 11.23 (s, 1H), 8.13 (d, J =7.2 Hz, 1H), 7.47-7.31 (m, 5H), 4.98-4.87 (m, 1H), 4.79-4.65 (m, 2H),3.85-3.81 (m, 2H), 3.74 (t, J = 7.5 Hz, 2H), 3.31 (t, J = 7.5 Hz, 2H),3.29-3.21 (m, 2H), 2.50-2.43 (m, 1H), 2.20-2.03 (m, 1H), 1.78-1.38 (m,16H) 8(57) hydro- chloride 3,3- dimethylbut-1-enyl

3-benzyl TLC:Rf 0.45 (n-hexane:ethyl acetate = 1:3) NMR: δ 1.03 (s, 9H),1.35-1.50 (m, 4H), 2.10-2.22 (m, 1H), 3.18-3.37 (m, 4H), 3.80-3.94 (m,4H), 4.63 (s, 2H), 5.04-5.13 (m, 1H), 6.05 (d, J = 15.66 Hz, 1H), 6.63(d, J = 15.66 Hz, 1H), 7.24-7.58 (m, 5H), 8.27 (d, J = 5.49 Hz, 1H),11.00 (s, 1H) 8(58) hydro- chloride 3,3- dimethylbut-1-enyl

3-methyl TLC:Rf 0.56 (methylene chloride:methanol = 9:1) NMR: δ 1.03 (s,9H), 1.25-1.55 (m, 4H), 2.04-2.21 (m, 1H), 2.99 (s, 3H), 3.20-3.40 (m,4H), 3.77-3.95 (m, 4H), 4.98-5.08 (m, 1H), 6.03 (d, J = 15.66 Hz, 1H),6.63 (d, J = 15.66 Hz, 1H), 8.34 (d, J = 8.52 Hz, 1H), 11.15 (s, 1H)8(59) hydro- chloride 3,3- dimethylbut-1-enyl

3-methyl TLC:Rf 0.36 (methylene chloride:methanol = 9:1) NMR: δ 1.02 (s,9H), 1.02 (m, 5H), 1.67 (m, 6H), 3.11 (s, 3H), 3.39 (t, J = 7.55 Hz,2H), 3.98 (t, J = 7.55 Hz, 2H), 4.94 (t, J = 6.18 Hz, 1H), 6.04 (d, J =15.66 Hz, 1H), 6.61 (d, J = 15.66 Hz, 1H), 8.33 (d, J = 6.32 Hz, 1H),11.50 (s, 1H) 8(60) hydro- chloride 3,3- dimethylbut-1-enyl

3-(2- hydroxy- ethyl) TLC:Rf 0.50 (methylene chloride:methanol = 9:1)NMR: δ 1.11 (m, 14H), 1.67 (m, 6H), 3.38 (t, J = 7.42 Hz, 2H), 3.62 (s,4H), 4.06 (t, J = 7.42 Hz, 2H), 4.95 (t, J = 6.18 Hz, 1H), 6.04 (d, J =15.66 Hz, 1H), 6.61 (d, J = 15.66 Hz, 1H), 8.30 (d, J = 6.04 Hz, 1H),11.43 (s, 1H) 8(61) hydro- chloride cyclohexyl

3-(2- hydroxy- ethyl) TLC:Rf 0.50 (methylene chloride:methanol 9:1) NMR:δ 1.07 (m, 10H), 1.63 (m, 11H), 2.26 (m, 1H), 3.40 (t, J = 7.55 Hz, 2H),3.62 (s, 4H), 4.08 (t, J = 7.55 Hz, 2H), 4.86 (t, J = 6.18 Hz, 1H), 8.08(d, J = 6.04 Hz, 1H), 11.46 (s, 1H) 8(62) hydro- chloride cyclohexyl

3-methyl TLC:Rf 0.54 (methylene chloride:methanol = 9:1) NMR: δ 1.43 (m,21H), 2.27 (m, 1H), 3.09 (s, 3H), 3.38 (t, J = 7.55 Hz, 2H), 3.96 (t, J= 7.42 Hz, 2H), 4.86 (m, 2H), 8.08 (d, J = 6.32 Hz, 1H), 11.42 (s, 1H)8(63) 2hydro- chloride cyclohexyl

3-(4-di- methyl- amino- methyl- benzyl) TLC:Rf 0.51 (methylenechloride:methanol:ammonia water = 90:10:1) NMR: δ 1.31 (m, 21H), 2.27(m, 1H), 2.65 (s, 3H), 2.67 (s, 3H), 3.29 (t, J = 7.28 Hz, 2H), 3.68 (t,J = 7.28 Hz, 2H), 4.25 (m, 2H), 4.72 (s, 2H), 4.98 (m, 2H), 7.46 (d, J =7.97 Hz, 2H), 7.58 (d, J = 8.24 Hz, 2H), 7.97 (d, J = 6.87 Hz, 1H),10.83 (s, 1H), 11.07 (s, 1H) 8(64) hydro- chloride cycloheptyl

3-methyl TLC:Rf 0.40 (methylene chloride:methanol = 9.1) NMR: δ 1.43 (m,23H), 2.49 (m, 1H), 3.11 (s, 3H), 3.40 (t, J = 7.55 Hz, 2H), 3.98 (t, J= 7.55 Hz, 2H), 4.83 (t, J = 6.18 Hz, 1H), 8.08 (d, J = 6.04 Hz, 1H),11.46 (s, 1H) 8(65) hydro- chloride cycloheptyl

3-methyl TLC:Rf 0.60 (methylene chloride:methanol = 9:1) NMR: δ 1.52 (m,16H), 2.08 (m, 1H), 2.48 (m, 1H), 3.08 (s, 3H), 3.24 (m, 2H), 3.38 (t, J= 7.55 Hz, 2H), 3.88 (m, 4H), 4.84 (t, J = 6.18 Hz, 2H), 8.18 (d, J =6.04 Hz, 1H), 11.40 (s, 1H) 8(66) hydro- chloride cycloheptyl

3-methyl TLC:Rf 0.56 (methylene chloride:methanol = 9:1) NMR: δ 1.53 (m,16H), 2.09 (m, 1H), 2.45 (m, 1H), 3.11 (s, 3H), 3.24 (m, 2H), 3.40 (t, J= 7.69 Hz, 2H), 3.83 (m, 2H), 3.99 (t, J = 7.55 Hz, 2H), 4.80 (m, 2H),8.21 (d, J = 6.32 Hz, 1H), 11.49 (s, 1H) 8(67) cyclohexyl (R)-isopropyl3-methyl hydro- TLC:Rf 0.46 (methylene chloride:methanol = 9:1) chlorideNMR: δ 0.88 (m, 6H), 1.22 (m, 5H), 1.67 (m, 5H), 2.15 (m, 1H), 2.31 (m,1H), 3.12 (s, 3H), 3.40 (t, J = 7.55 Hz, 2H), 4.00 (m, 2H), 4.83 (t, J =6.18 Hz, 1H), 8.10 (d, J = 6.32 Hz, 1H), 11.52 (s, 1H) 8(68) cyclohexyl(R)-butyl 3-methyl hydro- TLC:Rf 0.58 (methylene chloride:methanol =9:1) chloride NMR: δ 0.84 (t, J = 6.87 Hz, 3H), 1.42 (m, 16H), 2.20 (m,1H), 3.09 (s, 3H), 3.38 (t, J = 7.42 Hz, 2H), 3.96 (t, J = 7.42 Hz, 2H),4.83 (s, 1H), 8.18 (d, J = 5.49 Hz, 1H), 11.41 (s, 1H) 8(69) cyclohexyl(R)-neopentyl 3-methyl hydro- TLC:Rf 0.50 (methylene chloride:methanol =9:1) chloride NMR: δ 0.90 (s, 9H), 1.41 (m, 12H), 2.16 (m, 1H), 3.08 (s,3H), 3.37 (t, J = 7.55 Hz, 2H), 3.95 (t, J = 7.55 Hz, 2H), 4.24 (m, 1H),4.99 (m, 1H), 8.11 (d, J = 6.04 Hz, 1H), 11.40 (s, 1H) 8(70) cyclohexyl(R)-cyclopropyl 3-methyl hydro- TLC:Rf 0.56 (methylene chloride:methanol= 9:1) chloride NMR: δ 0.41 (m, 4H), 1.11 (m, 6H), 1.63 (m, 5H), 2.22(m, 1H), 3.08 (s, 3H), 3.38 (t, J = 7.55 Hz, 2H), 3.62 (m, 1H), 3.96 (t,J = 7.55 Hz, 2H), 4.20 (dd, J = 8.79, 5.49 Hz, 1H), 8.40 (d, J = 4.67Hz, 1H), 11.40 (s, 1H)

Example 8(71)

N′-[3-methyl-1,3-thiazolidin-2-ylidene]-[3-(N-phenylsulfonyl-N-methylamino)-2-oxo-4-methylpentanohydrazide]hydrochloride

TLC: Rf 0.45 (ethyl acetate:methanol=9:1);

NMR: δ 11.28 (br-s, 1H), 7.73 (d, J=7.2 Hz, 2H), 7.66-7.55 (m, 3H), 5.04(d, J=9.9 Hz, 1H), 3.86 (t, J=7.5 Hz, 2H), 3.32 (t, J=7.5 Hz, 2H), 3.04(s, 3H), 2.84 (s, 3H), 2.20-2.02 (m, 1H), 0.83 (d, J=6.9 Hz, 3H), 0.79(d, J=6.9 Hz, 3H).

Example 8(72)N′-(3-methyl-1,3-perhydrothiazin-2-ylidene)-[3-cyclohexylcarbonylamino-2-oxo-3-(tetrahydropyran-4-yl)hexanohydrazide]hydrochloride

TLC: Rf 0.36 (ethyl acetate:acetic acid:water=3:1:1);

NMR: δ 1.00-1.80 (m, 15H), 2.09 (m, 2H), 2.27 (m, 1H), 3.20-3.40 (m,7H), 3.59 (t, J=5.22 Hz, 2H), 3.84 (m, 2H), 4.80 (t, J=6.18 Hz, 1H),8.27 (d, J=6.04 Hz, 1H), 11.37 (s, 1H).

Example 8(73)N′-(3-methyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-3-methyl-2-oxobutanohydrazide]hydrochloride

TLC: Rf 0.52 (methylene chloride:methanol=9:1);

NMR: δ 11.10 (br, 1H), 8.52 (s, 1H), 4.03 (t, J=7.2 Hz, 2H), 3.40 (t,J=7.2 Hz, 2H), 2.16-2.04 (m, 1H), 1.68-1.57 (m, 5H), 1.36 (s, 6H),1.29-1.03 (m, 5H).

Example 8(74)

N′-(3-methyl-1,3-perhydrothiazin-2-ylidene)-(3-cyclohexylcarbonylamino-2-oxo-5-methylhexanohydrazide)

Free Compound:

NMR: δ 10.20 (brs, 1H), 7.90-7.78 (m, 3H), 7.60-7.40 (m, 3H), 5.11 (m,1H), 3.31 (m, 2H), 2.98 (s, 3H), 2.92 (m, 2H), 2.31-2.10 (m, 2H),2.10-1.90 (m, 1H), 1.90-1.20 (m, 13H), 1.00-0.70 (m, 6H).

Hydrochloride:

TLC: Rf 0.58 (methylene chloride:methanol=9:1);

NMR: δ 11.45 (brs, 1H), 8.20-7.20 (m, 7H), 4.89 (q, J=6.0 Hz, 1H), 3.69(m, 2H), 3.25 (s, 3H), 3.23 (m, 2H), 2.40-2.00 (m, 4H), 1.97-1.05 (m,11H), 1.00-0.70 (m, 6H).

Example 8(75)

N′-(3-methyl-1,3-perhydrothiazin-2-ylidene)-[3-(1-benzoylaminocyclohexylcarbonylamino)-5-methyl-2-oxohexanohydrazide]

Free Compound:

NMR: δ 10.62 (s, 1H), 8.00-7.40 (m, 7H), 5.17-5.02 (m, 1H), 3.58 (t,J=6.9 Hz, 2H), 3.17 (t, J=6.9 Hz, 2H), 2.86 (s, 3H), 1.80-1.20 (m, 13H),0.95-0.75 (m, 6H).

Hydrochloride:

TLC: Rf 0.63 (methylene chloride:methanol=10:1);

NMR: δ 11.42 (s, 1H), 7.80-7.38 (m, 7H), 5.00-4.88 (m, 1H), 3.94 (t,J=6.9 Hz, 2H), 3.37 (t, J=6.9 Hz, 2H), 3.08 (s, 3H), 230-2.00 (m, 2H),1.82-1.15 (m, 11H), 0.95-0.70 (m, 6H).

Example 9 Preparation ofN′-(3,4,4-trimethyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-oxopropanohydrazide]hydrochloride

Step 1: To a solution of1:5-(1-hydroxy-2-cyclohexylcarbonylamino-2-tetrahydropyran-4-ylethyl)-2-thioxo-1,3,4-oxadiazoline(prepared in step 1 of example 8; 281 mg) in N,N-dimethylformamide (2ml) were added N-methyl-N-(1,1-dimethyl-2-chloroethyl)amine (125 mg) andpotassium carbonate (328 mg) and the mixture was stirred for 3 hours at70° C. The reaction mixture was poured into brine and was extracted withethyl acetate, dried over anhydrous magnesium sulfate and concentrated.The residue was purified by column chromatography on silica gel (ethylacetate:methanol=9:1) to giveN′-(3,4,4-trimethyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-hydroxypropanohydrazide](279 mg).

TLC: Rf 0.51 and 0.44 (methylene chloride:methanol=9:1).

Step 2: By the same procedure as described in step 7 of example 1 usingthe compound prepared in step 1, a free compound ofN′-(3,4,4-trimethyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-oxopropanohydrazide] was given. To the free compound wasadded 4N hydrochloric acid-ethyl acetate solution and the mixture wasstirred for 1 hour at room temperature and the mixture was concentrated.The residue was washed with ethyl acetate to giveN′-(3,4,4-trimethyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-oxopropanohydrazide]hydrochloride(140 mg).

Free Compound:

NMR: δ 1.25 (s, 3H), 1.26 (s, 3H), 1.29 (m, 14H), 2.10 (d, J=6.59 Hz,1H), 2.29 (m, 1H), 2.74 (s, 3H), 3.04 (s, 2H), 3.26 (m, J=29.67 Hz, 2H),3.82 (m, 2H), 5.06 (dd, J=8.10, 5.91 Hz, 1H), 7.95 (d, J=7.69 Hz, 1H),10.55 (s, 1H).

Hydrochloride:

TLC: Rf 0.46 (methylene chloride:methanol=9:1);

NMR (CDCl₃): δ 1.35 (s, 6H), 1.56 (m, 14H), 2.16 (m, 1H), 2.39 (m, 1H),2.90 (s, 3H), 3.07 (s, 2H), 3.34 (m, 2H), 3.94 (m, 2H), 5.15 (dd,J=9.20, 6.46 Hz, 1H), 6.57 (d, J=9.07 Hz, 1H), 8.76 (s, 1H).

Example 9(1)-Example 9(9)

By the same procedure as described in example 9 using correspondingcompounds, the following compounds were given.

Example R^(L) R⁷ 9(1) cyclohexyl isobutyl hydro- TLC: Rf 0.66 (methylenechloride:methanol = 9:1) chloride NMR(100° C.): δ 7.68-7.56 (br, 1H),5.04-4.92 (m, 1H), 3.15 (s, 2H), 2.87 (brs, 3H), 2.29-2.15 (m, 1H),1.82-1.08 (m, 13H), 1.33 (s, 6H), 0.91 and 0.90 (each d, J = 6.3 Hz,total 6H) 9(2) cyclohexyl neopentyl hydro- TLC: Rf 0.65 (methylenechloride:methanol = 9:1) chloride NMR(100° C.): δ 7.69-7.50 (m, 1H),5.10-4.90 (m, 1H), 3.18 (s, 2H), 2.90 (s, 3H), 2.27-2.12 (m, 1H),1.88-1.10 (m, 12H), 1.35 (s, 6H), 0.94 (s, 9H) 9(3) hydro- chloride3,3-dimethylbut-1-enyl

TLC: Rf 0.54 (methylene chloride:methanol = 10:1) NMR: δ 1.02 (s, 9H),1.40 (m, 10H), 2.12 (m, 1H), 2.92 (s, 3H), 3.24 (m, 4H), 3.88 (m, 2H),4.98 (m, 1H), 6.02 (d, J = 15.66 Hz, 1H), 6.62 (d, J = 15.66 Hz, 1H),8.38 (d, J = 7.42 Hz, 1H), 11.22 (s, 1H) 9(4) cycloheptyl

free compound TLC: Rf 0.37 (methylene chloride:methanol = 9:1) NMR(CDCl₃): δ 1.33 (m, 6H), 1.66 (m, 16H), 2.36 (m, 2H), 2.90 (s, 3H), 3.06(s, 2H), 3.35 (m, 2H), 3.95 (m, 2H), 5.14 (dd, J = 9.61, 6.32 Hz, 1H),6.47 (d, J = 9.61 Hz, 1H), 8.75 (s, 1H) hydrochloride TLC: Rf 0.43(methylene chloride:methanol = 9:1) NMR: δ 1.52 (m, 22H), 2.07 (m, 1H),2.49 (m, 1H), 3.03 (s, 3H), 3.24 (m, 2H), 3.32 (s, 2H), 3.83 (m, 2H),4.80 (t, J = 6.18 Hz, 1H), 8.24 (d, J = 6.32 Hz, 1H), 11.49 (s, 1H) 9(5)hydro- chloride cyclohexyl

TLC: Rf 0.33 (n-hexane:ethyl acetate = 1:10) NMR: δ 1.41 (m, 27H), 2.26(m, 1H), 2.99 (s, 3H), 3.29 (s, 2H), 4.86 (m, 1H), 8.09 (d, J = 6.32 Hz,1H), 11.38 (s, 1H) 9(6) hydro- chloride cycloheptyl

TLC: Rf 0.54 (methylene chloride:methanol = 9:1) NMR: δ 1.44 (m, 29H),2.49 (m, 1H), 3.01 (s, 3H), 3.30 (s, 2H), 4.82 (t, J = 6.18 Hz, 1H),8.09 (d, J = 6.04 Hz, 1H), 11.41 (s, 1H) 9(7) hydro- chloride cyclohexyl(S)-isopropyl TLC: Rf 0.49 (methylene chloride:methanol = 10:1) NMR: δ0.87 (m, 6H), 1.41 (m, 16H), 2.15 (m, 1H), 2.30 (m, 1H), 2.99 (s, 3H),3.28 (s, 2H), 4.83 (m, 1H), 8.08 (d, J = 6.59 Hz, 1H), 11.41 (s, 1H)

Example 9(8)N′-(4,4-dimethyl-3-ethyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-oxopropanohydrazide]-hydrochloride

TLC: Rf 0.51 (ethyl acetate:methanol=15:1);

NMR: δ 1.35 (m, 23H), 2.09 (m, 1H), 2.28 (m, 1H), 3.25 (s, 2H), 3.44 (m,4H), 3.84 (m, 2H), 4.87 (m, 1H), 8.17 (m, 1H), 11.27 (s, 1H).

Example 9(9)N′-[1-aza-1-methyl-3-thiaspiro[4.4]non-2-ylidene)-[3-cyclohexyl-3-cyclohexylcarbonylamino-2-oxopropionohydrazide]hydrochloride

TLC: Rf 0.67 (methylene chloride:methanol=9:1);

NMR: δ 1.45 (m, 22H), 2.08 (m, 1H), 2.27 (m, 1H), 3.00 (s, 3H), 3.23 (m,2H), 3.34 (s, 2H), 3.81 (m, 2H), 4.84 (t, J=6.32 Hz, 1H), 8.20 (d,J=6.32 Hz, 1H), 11.39 (s, 1H).

Example 10

Step 1: To a solution of 4-formyltetrahydropyran (1.14 g),cycloheptylcarboxyamide (1.41 g) in N-methylpyrrolidone (8 ml) wereadded lithium bromide (304 mg), conc. sulfic acid (10 mg) anddibromobis(triphenylphosphine) palladium (II) (20 mg) and the mixturewas stirred at 120° C. for 10 hours in an autoclave under atmosphere ofcarbon monoxide at a pressure of 57 kg/cm². The reaction mixture wasextracted with ethyl acetate and a saturated aqueous solution of sodiumbicarbonate. The aqueous layer was neutralized with conc. hydrochloricacid and extracted with ethyl acetate twice, washed with diisopropylether to give 2-cycloheptylcarbonyl amino-2-(tetrahydropyran-4-yl)aceticacid (2.33 g).

TLC: Rf 0.60 (methylene chloride:methanol=10:1).

Step 2: To a solution of the compound prepared in step 1 (1.13 g),pyridine (0.97 ml) and dimethylaminopyridine (24.4 mg) intetrahydrofuran (4 ml) was added2-cycloheptylcarbonylamino-2-(tetrahydropyran-4-yl)acetic acid (preparedin step 1; 0.89 ml) and the mixture was refluxed for 6 hours. To themixture was added2-cycloheptylcarbonylamino-2-(tetrahydropyran-4-yl)acetic acid (0.089ml) again and the mixture was stirred for 1 hour. To the reactionmixture was extracted with ethyl acetate and ice-water. The organiclayer was washed with an aqueous solution of citric acid, a saturatedaqueous solution of sodium bicarbonate, water and brine successively,dried over anhydrous sodium sulfate and concentrated. The residue wasdissolved in methanol (4 ml) and thereto was added sodium bicarbonate(136 mg) and the mixture was refluxed for 150 minutes. The precipitatewas collected, and the filtrate was concentrated, and the residue waswashed with diisopropyl ether3-cycloheptylcarbonylamino-3-(tetrahydropyran-4-yl)-2-oxopropanoic acidmethyl ester (542 mg).

TLC: Rf 0.36 (n-hexane:ethyl acetate=1:1).

Step 3: To a suspension of the compound prepared in step 2 (325 mg) inmethanol (1 ml) was added hydrazine monohydrate (60 mg) and the mixturewas stirred for 3 hours. To the mixture was added hydrazine monohydrate(6 mg) again and the mixture was stirred for 30 minutes. To the reactionmixture was added methanol (4 ml) and the precipitate was collected andwashed with methanol to give3-cycloheptylcarbonylamino-2-oxo-3-(tetrahydropyran-4-yl)propanohydrazide(142 mg).

TLC: Rf 0.44 (methylene chloride:methanol=10:1).

Step 4: By the same procedure as described in step 6 of example 1 usingthe compound prepared in step 3 and a corresponding compound, followedby recrystallization from isopropanol to giveN′-(3-ethyl-4-methyl-1,3-thiazolidin-2-ylidene)-[3-cycloheptylcarbonylamino-3-[(3S)-tetrahydropyran-4-yl]-2-oxopropanohydrazide].

TLC: Rf 0.54 (methylene chloride:methanol=9:1);

NMR (CDCl₃): δ 1.19 (t, J=7.14 Hz, 3H), 1.33 (d, J=6.22 Hz, 3H), 1.67(m, 16H), 2.30 (m, 1H), 2.40 (m, 1H), 2.86 (dd, J=10.80, 6.41 Hz, 1H),3.22 (td, J=14.10, 6.96 Hz, 1H), 3.35 (m, 3H), 3.79 (td, J=14.46, 7.32Hz, 1H), 3.98 (m, 3H), 5.14 (dd, J=9.15, 6.22 Hz, 1H), 6.46 (d, J=9.15Hz, 1H), 8.73 (s, 1H).

Example 10(1)-Example 10(66)

By the same procedure as described in example 10 using correspondingcompounds, the following compounds were given.

Example R^(L) R⁷ R²⁷ 10(1) cyclohexyl

3-(4-methoxybenzyl) TLC: Rf 0.55 (ethyl acetate) NMR (CDCl₃): δ 1.59 (m,14H), 2.17 (m, 1H), 2.40 (m, 1H), 3.18 (t, J = 6.87 Hz, 2H), 3.35 (m,2H), 3.51 (t, J = 7.00 Hz, 2H), 3.80 (s, 3H), 3.95 (m, 2H), 4.56 (d, J =14.56 Hz, 1H), 4.62 (d, J = 14.50 Hz, 1H), 5.19 (dd, J = 9.07, 6.04 Hz,1H), 6.50 (d, J = 9.07 Hz, 1H), 6.88 (d, J = 8.79 Hz, 2H), 7.26 (d, J =8.79 Hz, 2H), 8.79 (s, 1H) 10(2) cycloheptyl

(4S)-3,4-dimethyl TLC: Rf 0.53 (ethyl acetate:methanol:water = 40:10:1)NMR (CDCl₃): δ 1.33 (d, J = 6.32 Hz, 3H), 1.66 (m, 16H), 2.30 (m, 2H),2.88 (dd, J = 10.71, 6.04 Hz, 1H), 2.98 (s, 3H), 3.35 (m, 3H), 3.90 (m,3H), 5.15 (dd, J = 9.07, 6.04 Hz, 1H), 6.45 (d, J = 9.89 Hz, 1H), 8.73(s, 1H) 10(3) cycloheptyl

3-methyl TLC: Rf 0.52 (methylene chloride:methanol = 9:1) NMR (CDCl₃): δ1.55 (m, 23H), 2.29 (m, 1H), 3.03 (s, 3H), 3.24 (t, J = 6.87 Hz, 2H),3.64 (t, J = 7.00 Hz, 2H), 5.04 (dd, J = 8.93, 6.73 Hz, 1H), 6.38 (d, J= 8.52 Hz, 1H), 8.72 (s, 1H) 10(4) (1S)-1-(t-butoxycarbonylamino)-3-methylbutyl

3-methyl TLC: Rf 0.50 (chloroform:methanol = 9:1) NMR: δ 0.84 (m, 6H),1.34 (m, 15H), 1.61 (m, 1H), 2.15 (m, 1H), 2.87 (s, 3H), 3.24 (m, 4H),3.57 (m, 2H), 3.81 (m, 2H), 4.07 (m, 1H), 5.16 (m, 1H), 6.91 (m, 1H),7.91 (m, 1H), 10.70 (s, 1H) 10(5) cycloheptyl

(4S)-3,4-dimethyl TLC: Rf 0.43 (methylene chloride:methanol = 9:1) NMR(CDCl₃): δ 1.33 (d, J = 6.32 Hz, 3H), 1.66 (m, 16H), 2.33 (m, 2H), 2.88(dd, J = 10.71, 6.32 Hz, 1H), 2.98 (s, 3H), 3.35 (m, 3H), 3.91 (m, 3H),5.15 (dd, J = 9.07, 6.32 Hz, 1H), 6.46 (d, J = 9.07 Hz, 1H), 8.74 (s,1H) 10(6) cycloheptyl

(4R)-3,4-dimethyl TLC: Rf 0.43 (methylene chloride:methanol = 9:1) NMR(CDCl₃): δ 1.33 (d, J = 6.32 Hz, 3H), 1.66 (m, 16H), 2.33 (m, 2H), 2.88(dd, J = 10.71, 6.04 Hz, 1H), 2.98 (s, 3H), 3.35 (m, 3H), 3.91 (m, 3H),5.15 (dd, J = 9.07, 6.04 Hz, 1H), 6.45 (d, J = 9.07 Hz, 1H), 8.73 (s,1H) 10(7) cycloheptyl

(4R)-3,4-dimethyl TLC: Rf 0.43 (methylene chloride:methanol = 9:1) NMR(CDCl₃): δ 1.33 (d, J = 6.32 Hz, 3H), 1.65 (m, 16H), 2.34 (m, 2H), 2.88(dd, J = 10.85, 6.18 Hz, 1H), 2.98 (s, 3H), 3.35 (m, 3H), 3.91 (m, 3H),5.15 (dd, J = 9.07, 6.32 Hz, 1H), 6.45 (d, J = 9.07 Hz, 1H), 8.73 (s,1H) 10(8) (1S)-1-methoxycarbonylamino- 3-methylbutyl

3-methyl TLC: Rf 0.50 (chloroform:methanol = 9:1) NMR: δ 0.87 (m, 6H),1.35 (m, 6H), 1.61 (m, 1H), 2.16 (m, 1H), 2.87 (s, 3H), 3.23 (m, 4H),3.51 (s, 3H), 3.58 (t, J = 6.87 Hz, 2H), 3.80 (m, 2H), 4.21 (m, 1H),5.12 (m, 1H), 7.24 (m, 1H), 8.10 (m, 1H), 10.67 (s, 1H) 10(9)(1S)-1-(t-butoxycarbonylamino)- 3-methylbutyl

3-methyl TLC: Rf 0.51 (chloroform:methanol = 10:1) NMR (CDCl₃): δ 1.31(m, 28H), 2.13 (m, 1H), 3.01 (s, 3H), 3.22 (t, J = 6.73 Hz, 2H), 3.61(t, J = 6.87 Hz, 2H), 4.11 (m, 1H), 4.85 (m, 1H), 5.21 (m, 1H), 6.89 (m,1H), 8.71 (s, 1H) 10(10) cyclohexyl

(4R)-3,4-dimethyl TLC: Rf 0.47 (methylene chloride:methanol = 9:1) NMR(CDCl₃): δ 1.33 (d, J = 6.04 Hz, 3H), 1.55 (m, 14H), 2.15 (m, 1H), 2.38(m, 1H), 2.88 (dd, J = 10.85, 6.18 Hz, 1H), 2.98 (s, 3H), 3.36 (m, 3H),3.90 (m, 3H), 5.15 (dd, J = 9.07, 6.32 Hz, 1H), 6.54 (d, J = 9.07 Hz,1H), 8.73 (s, 1H) 10(11) (1S)-1-methoxycarbonylamino- 3-methylbutyl

3-methyl TLC: Rf 0.48 (ethyl acetate:methanol = 10:1) NMR (CDCl₃): δ1.28 (m, 19H), 2.13 (m, 1H), 3.02 (s, 3H), 3.23 (t, J = 6.87 Hz, 2H),3.62 (t, J = 6.87 Hz, 2H), 3.68 (s, 3H), 4.21 (m, 1H), 5.11 (m, 2H),6.79 (m, 1H), 8.70 (s, 1H) 10(12) cycloheptyl

(4R)-4-isopropyl- 3-methyl TLC: Rf 0.60 (ethyl acetate:methanol = 9:1)NMR: δ 0.86 (m, 6H), 1.51 (m, 16H), 2.17 (m, 2H), 2.46 (m, 1H), 2.86 (s,3H), 2.97 (m, 1H), 3.26 (m, 3H), 3.77 (m, 3H), 5.02 (m, 1H), 7.93 (d, J= 7.69 Hz, 1H), 10.55 (s, 1H) 10(13) cycloheptyl

(4R)-4-isobutyl- 3-methyl TLC: Rf 0.69 (ethyl acetate:methanol = 9:1)NMR: δ 0.91 (m, 6H), 1.52 (m, 19H), 2.09 (m, 1H), 2.47 (m, 1H), 2.84 (s,3H), 2.91 (m, 1H), 3.29 (m, 3H), 3.80 (m, 3H), 5.05 (m, 1H), 7.93 (d, J= 6.96 Hz, 1H), 10.56 (s, 1H) 10(14) cyclohexyl

(4R)-4-isopropyl- 3-methyl TLC: Rf 0.56 (ethyl acetate:methanol = 9:1)NMR: δ 0.86 (m, 6H), 1.39 (m, 14H), 2.19 (m, 3H), 2.85 (s, 3H), 2.97 (m,1H), 3.29 (m, 3H), 3.70 (m, 1H), 3.83 (m, 2H), 5.06 (m, 1H), 7.94 (d, J= 8.06 Hz, 1H), 10.56 (s, 1H) 10(15) cyclohexyl

(4R)-4-isobutyl- 3-methyl TLC: Rf 0.65 (ethyl acetate:methanol = 9:1)NMR: δ 0.90 (m, 6H), 1.40 (m, 17H), 2.11 (m, 1H), 2.29 (m, 1H), 2.84 (s,3H), 2.91 (m, 1H), 3.27 (m, 3H), 3.77 (m, 3H), 5.06 (m, 1H), 7.93 (d, J= 7.32 Hz, 1H), 10.56 (s, 1H) 10(16) cycloheptyl

(4R)-4-isopropyl- 3-methyl TLC: Rf 0.50 (ethyl acetate) NMR: δ 0.85 (m,6H), 1.45 (m, 23H), 2.20 (m, 1H), 2.47 (m, 1H), 2.85 (s, 3H), 2.96 (m,1H), 3.16 (m, 1H), 3.70 (m, 1H), 5.01 (m, 1H), 7.81 (d, J = 6.96 Hz,1H), 10.52 (s, 1H) 10(17) cycloheptyl

(4R)-4-isobutyl- 3-methyl TLC: Rf 0.60 (ethyl acetate) NMR: δ 0.91 (m,6H), 1.48 (m, 26H), 2.45 (m, 1H), 2.84 (s, 3H), 2.91 (m, 1H), 3.34 (m,1H), 3.77 (m, 1H), 5.01 (m, 1H), 7.81 (d, J = 7.69 Hz, 1H), 10.53 (s,1H) 10(18) cycloheptyl

(5R)-3,5-dimethyl TLC: Rf 0.58 (methylene chloride:methanol = 9:1) NMR(CDCl₃): δ 1.47 (d, J = 6.59 Hz, 3H), 1.47 (m, J = 6.59 Hz, 16H), 2.30(m, 1H), 2.39 (m, 1H), 3.03 (s, 3H), 3.32 (m, 3H), 3.71 (m, 1H), 3.82(m, 1H), 3.95 (m, 2H), 5.14 (dd, J = 8.06, 6.59 Hz, 1H), 6.45 (d, J =9.15 Hz, 1H), 8.69 (s, 1H) 10(19) cyclohexyl

(5R)-3,5-dimethyl TLC: Rf 0.55 (methylene chloride:methanol = 9:1) NMR(CDCl₃): δ 1.47 (d, J = 6.59 Hz, 3H), 1.47 (m, J = 6.59 Hz, 14H), 2.16(m, 1H), 2.37 (m, 1H), 3.03 (s, 3H), 3.32 (m, 3H), 3.72 (m, 1H), 3.82(m, 1H), 3.96 (m, 2H), 5.15 (dd, J = 9.15, 6.59 Hz, 1H), 6.54 (d, J =8.79 Hz, 1H), 8.70 (s, 1H) 10(20) cycloheptyl

(5R)-3,5-dimethyl TLC: Rf 0.58 (methylene chloride:methanol = 9:1) NMR(CDCl₃): δ 1.46 (d, J = 6.59 Hz, 22H), 1.46 (d, J = 6.59 Hz, 3H), 2.10(m, 1H), 2.29 (m, 1H), 3.03 (s, 3H), 3.27 (dd, J = 9.34, 6.41 Hz, 1H),3.71 (m, 1H), 3.81 (m, 1H), 5.04 (m, 1H), 6.40 (d, J = 8.79 Hz, 1H),8.69 (s, 1H) 10(21) cycloheptyl

(4R)-3,4-diethyl TLC: Rf 0.57 (methylene chloride:methanol = 9:1) NMR:(CDCl₃): δ 0.97 (t, J = 7.51 Hz, 3H), 1.19 (t, J = 7.14 Hz, 3H), 1.63(m, 18H), 2.30 (m, 1H), 2.42 (m, 1H), 2.96 (dd, J = 10.98, 6.22 Hz, 1H),3.20 (m, 1H), 3.34 (m, 3H), 3.81 (m, 2H), 3.97 (m, 2H), 5.16 (m, 1H),6.46 (m, 1H), 8.72 (s, 1H) 10(22) cycloheptyl

(4R)-3,4-diethyl TLC: Rf 0.58 (methylene chloride:methanol = 9:1) NMR(CDCl₃): δ 0.97 (t, J = 7.51 Hz, 3H), 1.49 (m, 27H), 2.11 (m, 1H), 2.29(m, 1H), 2.95 (dd, J = 10.98, 6.22 Hz, 1H), 3.21 (m, 1H), 3.30 (dd, J =10.80, 6.77 Hz, 1H), 3.81 (m, 2H), 5.03 (m, 1H), 6.42 (m, 1H), 8.72 (s,1H) 10(23) cyclohexyl

(4R)-3,4-diethyl TLC: Rf 0.56 (methylene chloride:methanol = 9:1) NMR(CDCl₃): δ 0.97 (t, J = 7.51 Hz, 3H), 1.54 (m, 19H), 2.15 (m, 1H), 2.38(m, 1H), 2.96 (dd, J = 10.98, 6.22 Hz, 1H), 3.20 (m, 1H), 3.35 (m, 3H),3.81 (m, 2H), 3.94 (m, 2H), 5.14 (dd, J = 9.15, 6.22 Hz, 1H), 6.55 (d, J= 8.79 Hz, 1H), 8.73 (s, 1H) 10(24) cycloheptyl

(4R)-3-ethyl-4-methyl TLC: Rf 0.46 (ethyl acetate:methanol = 20:1) NMR:δ 1.07 (t, J = 7.05 Hz, 3H), 1.22 (d, J = 6.22 Hz, 3H), 1.54 (m, 17H),2.12 (m, 1H), 2.79 (dd, J = 10.89, 6.87 Hz, 1H), 3.17 (m, 4H), 3.55 (m,1H), 3.81 (m, 2H), 3.93 (m, 1H), 5.02 (dd, J = 7.69, 6.04 Hz, 1H), 7.93(d, J = 7.69 Hz, 1H), 10.56 (s, 1H) 10(25) cycloheptyl

(4R)-4-ethyl-3-methyl TLC: Rf 0.45 (ethyl acetate:methanol = 9:1) NMR: δ0.87 (t, J = 7.05 Hz, 3H), 1.42 (m, 18H), 2.12 (m, 1H), 2.30 (m, 1H),2.84 (s, 3H), 2.93 (m, 1H), 3.26 (m, 3H), 3.74 (m, 3H), 5.05 (m, 1H),7.94 (d, J = 8.06 Hz, 1H), 10.57 (s, 1H) 10(26) cyclohexyl

(4R)-4-ethyl-3-methyl TLC: Rf 0.45 (ethyl acetate:methanol = 9:1) NMR: δ0.87 (t, J = 6.87 Hz, 3H), 1.52 (m, 17H), 2.12 (m, 1H), 2.84 (s, 3H),2.93 (m, 1H), 3.26 (m, 3H), 3.67 (m, 1H), 3.82 (m, 2H), 4.98 (m, 1H),7.94 (d, J = 8.06 Hz, 1H), 10.56 (s, 1H) 10(27) cycloheptyl

(4R)-4-ethyl-3-methyl TLC: Rf 0.47 (ethyl acetate) NMR: δ 0.87 (m, 3H),1.48 (m, 25H), 2.47 (m, 1H), 2.84 (s, 3H), 2.94 (m, 1H), 3.29 (m, 1H),3.69 (m, 1H), 5.03 (m, 1H), 7.82 (d, J = 7.69 Hz, 1H), 10.53 (s, 1H)10(28) cycloheptyl

3-[(1R)-1-phenylethyl] TLC: Rf 0.57 (chloroform:methanol = 9:1) NMR(CDCl₃): δ 1.66 (m, 19H), 2.37 (m, 2H), 3.12 (m, 2H), 3.34 (m, 3H), 3.57(m, 1H), 3.96 (m, 2H), 5.18 (dd, J = 8.97, 6.22 Hz, 1H), 5.70 (m, 1H),6.43 (d, J = 8.97 Hz, 1H), 7.33 (m, 5H), 8.81 (s, 1H) 10(29) cyclohexyl

3-[(1R)-1-phenylethyl] TLC: Rf 0.55 (chloroform:methanol = 9:1) NMR(CDCl₃): δ 1.54 (m, 17H), 2.17 (m, 1H), 2.42 (m, 1H), 3.11 (m, 2H), 3.34(m, 3H), 3.57 (m, 1H), 3.94 (m, 2H), 5.19 (dd, J = 9.15, 6.41 Hz, 1H),5.69 (m, 1H), 6.52 (d, J = 9.15 Hz, 1H), 7.34 (m, 5H), 8.81 (s, 1H)10(30) cyclohexyl

(4R)-3-ethyl-4-methyl TLC: Rf 0.47 (ethyl acetate) NMR: δ 1.07 (t, J =7.14 Hz, 3H), 1.23 (d, J = 6.22 Hz, 3H), 1.51 (m, 14H), 2.13 (m, 1H),2.29 (m, 1H), 2.80 (dd, J = 10.98, 6.96 Hz, 1H), 3.24 (m, 4H), 3.56 (m,1H), 3.81 (m, 2H), 3.93 (m, 1H), 5.05 (dd, J = 7.69, 5.86 Hz, 1H), 7.94(d, J = 8.06 Hz, 1H), 10.57 (s, 1H) 10(31) cyclohexyl

(4S)-3-ethyl-4-methyl TLC: Rf 0.53 (methylene chloride:methanol = 9:1)NMR (CDCl₃): δ 1.54 (m, 20H), 2.15 (m, 1H), 2.38 (m, 1H), 2.86 (dd, J =10.80, 6.41 Hz, 1H), 3.22 (td, J = 14.28, 6.96 Hz, 1H), 3.35 (m, 3H),3.79 (td, J = 14.37, 7.14 Hz, 1H), 3.99 (m, 3H), 5.15 (dd, J = 8.97,6.41 Hz, 1H), 6.54 (d, J = 9.15 Hz, 1H), 8.73 (s, 1H) 10(32) cycloheptyl

(4R)-4-benzyl-3-methyl TLC: Rf 0.50 (ethyl acetate:methanol = 9:1) NMR(CDCl₃): δ 1.65 (m, 16H), 2.36 (m, 2H), 2.76 (dd, J = 12.45, 9.89 Hz,1H), 2.97 (dd, J = 10.98, 3.66 Hz, 1H), 3.07 (s, 3H), 3.07 (m, 2H), 3.36(m, 2H), 3.97 (m, 3H), 5.15 (m, 1H), 6.45 (d, J = 9.52 Hz, 1H), 7.27 (m,5H), 8.74 (s, 1H) 10(33) cyclohexyl

(4R)-4-benzyl-3-methyl TLC: Rf 0.39 (ethyl acetate:methanol = 9:1) NMR(CDCl₃): δ 1.53 (m, 14H), 2.16 (m, 1H), 2.39 (m, 1H), 2.76 (dd, J =13.36, 9.70 Hz, 1H), 2.97 (dd, J = 10.98, 3.66 Hz, 1H), 3.07 (s, 3H),3.16 (m, 2H), 3.34 (m, 2H), 3.95 (m, 3H), 5.15 (m, 1H), 6.54 (d, J =7.69 Hz, 1H), 7.27 (m, 5H), 8.74 (s, 1H) 10(34) cycloheptyl

(4R)-3-ethyl-4-methyl TLC: Rf 0.53 (methylene chloride:methanol = 30:1)NMR: δ 1.37 (m, 29H), 1.87 (m, 1H), 2.80 (m, 1H), 3.13 (m, 1H), 3.32 (m,1H), 3.56 (m, 1H), 3.94 (m, 1H), 4.99 (m, 1H), 7.82 (d, J = 8.06 Hz,1H), 10.52 (m, 1H) 10(35) cycloheptyl

(4R)-3-benzyl-4-methyl TLC: Rf 0.70 (methylene chloride:methanol = 9:1)NMR (CDCl₃): δ 1.28 (d, J = 6.22 Hz, 3H), 1.67 (m, 16H), 2.31 (m, 1H),2.40 (m, 1H), 2.87 (dd, J = 10.80, 5.68 Hz, 1H), 3.35 (m, 3H), 3.85 (m,1H), 3.96 (m, 2H), 4.16 (d, J = 15.38 Hz, 1H), 5.18 (m, 2H), 6.42 (d, J= 9.15 Hz, 1H), 7.32 (m, 5H), 8.79 (s, 1H) 10(36) cyclohexyl

(4R)-3-benzyl-4-methyl TLC: Rf 0.69 (methylene chloride:methanol = 9:1)NMR (CDCl₃): δ 1.55 (m, 17H), 2.16 (m, 1H), 2.40 (m, 1H), 2.87 (dd, J =10.62, 5.49 Hz, 1H), 3.36 (m, 3H), 3.84 (m, 1H), 3.96 (m, 2H), 4.16 (d,J = 15.38 Hz, 1H), 5.19 (m, 2H), 6.51 (d, J = 9.15 Hz, 1H), 7.32 (m,5H), 8.79 (s, 1H) 10(37) cycloheptyl

(4R)-4-benzyl-3-methyl TLC: Rf 0.43 (ethyl acetate) NMR (CDCl₃): δ 1.42(m, 22H), 2.10 (m, 1H), 2.30 (m, 1H), 2.75 (dd, J = 13.36, 10.07 Hz,1H), 2.96 (dd, J = 11.17, 3.11 Hz, 1H), 3.07 (m, 3H), 3.14 (m, 2H), 3.97(m, 1H), 5.03 (m, 1H), 6.39 (d, J = 9.15 Hz, 1H), 7.24 (m, 5H), 8.74 (s,1H) 10(38) cycloheptyl

(4R)-3-benzyl-4-ethyl TLC: Rf 0.72 (methylene chloride:methanol = 9:1)NMR (CDCl₃): δ 0.89 (t, J = 7.51 Hz, 3H), 1.67 (m, 18H), 2.31 (m, 1H),2.42 (m, 1H), 2.98 (dd, J = 10.80, 5.31 Hz, 1H), 3.33 (m, 3H), 3.66 (m,1H), 3.96 (m, 2H), 4.17 (d, J = 15.38 Hz, 1H), 5.20 (m, 2H), 6.43 (d, J= 9.15 Hz, 1H), 7.33 (m, 5H), 8.79 (s, 1H) 10(39) cyclohexyl

(4R)-3-benzyl-4-ethyl TLC: Rf 0.71 (methylene chloride:methanol = 9:1)NMR (CDCl₃): δ 0.89 (t, J = 7.51 Hz, 3H), 1.55 (m, 16H), 2.16 (m, 1H),2.40 (m, 1H), 2.98 (dd, J = 10.98, 5.13 Hz, 1H), 3.32 (m, 3H), 3.66 (m,1H), 3.95 (m, 2H), 4.17 (d, J = 15.38 Hz, 1H), 5.20 (m, 2H), 6.51 (d, J= 9.15 Hz, 1H), 7.31 (m, 5H), 8.79 (s, 1H) 10(40) cycloheptyl

3-[(1R)-1-phenylethyl] TLC: Rf 0.50 (chloroform:methanol = 40:1) NMR(CDCl₃): δ 1.43 (m, 25H), 2.12 (m, 1H), 2.30 (m, 1H), 3.09 (m, 2H), 3.28(m, 1H), 3.57 (m, 1H), 5.07 (dd, J = 8.79, 6.96 Hz, 1H), 5.71 (m, 1H),6.38 (d, J = 8.79 Hz, 1H), 7.35 (m, 5H), 8.81 (s, 1H) 10(41) cyclohexyl

3-[(1S)-1-phenylethyl] TLC: Rf 0.28 (chloroform:methanol = 40:1) NMR(CDCl₃): δ 1.52 (m, 17H), 2.17 (m, 1H), 2.41 (m, 1H), 3.11 (m, 2H), 3.33(m, 3H), 3.58 (m, 1H), 3.94 (m, 2H), 5.19 (dd, J = 9.15, 6.41 Hz, 1H),5.69 (m, 1H), 6.52 (d, J = 9.15 Hz, 1H), 7.30 (m, 5H), 8.81 (s, 1H)10(42) cycloheptyl

(4R)-3-methyl-4-phenyl TLC: Rf 0.63 (ethyl acetate:methanol = 9:1) NMR:δ 1.55 (m, 16H), 2.15 (m, 1H), 2.48 (m, 1H), 2.69 (s, 3H), 3.02 (m, 1H),3.31 (m, 2H), 3.63 (m, 1H), 3.83 (m, 2H), 4.88 (m, 1H), 5.06 (m, 1H),7.38 (m, 5H), 7.97 (d, J = 7.69 Hz, 1H), 10.73 (s, 1H) 10(43) cyclohexyl

(4R)-3-methyl-4-phenyl TLC: Rf 0.60 (ethyl acetate:methanol = 9:1) NMR:δ 1.44 (m, 14H), 2.14 (m, 1H), 2.31 (m, 1H), 2.69 (s, 3H), 3.03 (m, 1H),3.25 (m, 2H), 3.63 (m, 1H), 3.83 (m, 2H), 4.88 (m, 1H), 5.08 (m, 1H),7.34 (m, 5H), 7.98 (d, J = 8.06 Hz, 1H), 10.75 (s, 1H) 10(44)cycloheptyl

(4R)-3-(2-methoxyethyl)- 4-methyl TLC: Rf 0.43 (ethyl acetate:methanol =9:1) NMR (CDCl₃): δ 1.33 (d, J = 6.22 Hz, 3H), 1.67 (m, 16H), 2.35 (m,2H), 2.86 (dd, J = 10.71, 5.77 Hz, 1H), 3.34 (m, 4H), 3.34 (s, 3H), 3.54(m, 1H), 3.66 (m, 1H), 3.92 (m, 3H), 4.14 (m, 1H), 5.16 (dd, J = 8.88,6.32 Hz, 1H), 6.43 (d, J = 8.60 Hz, 1H), 8.73 (s, 1H) 10(45) cyclohexyl

(4R)-3-(2-methoxyethyl)- 4-methyl TLC: Rf 0.43 (ethyl acetate:methanol =9:1) NMR (CDCl₃): δ 1.33 (d, J = 6.22 Hz, 3H), 1.33 (m, J = 6.22 Hz,14H), 2.15 (m, 1H), 2.38 (m, 1H), 2.86 (dd, J = 10.71, 5.77 Hz, 1H),3.34 (m, 4H), 3.34 (s, 3H), 3.54 (m, 1H), 3.66 (m, 1H), 3.92 (m, 3H),4.15 (m, 1H), 5.16 (dd, J = 8.97, 6.22 Hz, 1H), 6.51 (d, J = 8.97 Hz,1H), 8.73 (s, 1H) 10(46) cycloheptyl

(4R)-4-ethyl- 3-(2-methoxyethyl) TLC: Rf 0.64 (methylenechloride:methanol = 9:1) NMR (CDCl₃): δ 0.95 (t, J = 7.32 Hz, 3H), 1.66(m, 18H), 2.36 (m, 2H), 2.97 (dd, J = 11.23, 5.86 Hz, 1H), 3.36 (m, 7H),3.53 (m, 1H), 3.67 (m, 1H), 3.97 (m, 4H), 5.16 (dd, J = 8.79, 6.35 Hz,1H), 6.43 (d, J = 8.79 Hz, 1H), 8.72 (s, 1H) 10(47) cyclohexyl

(4R)-4-ethyl- 3-(2-methoxyethyl) TLC: Rf 0.58 (methylenechloride:methanol = 9:1) NMR (CDCl₃): δ 0.95 (t, J = 7.51 Hz, 3H), 1.56(m, 16H), 2.15 (m, 1H), 2.39 (m, 1H), 2.97 (dd, J = 10.80, 5.31 Hz, 1H),3.34 (m, 7H), 3.52 (m, 1H), 3.67 (m, 1H), 3.95 (m, 4H), 5.16 (dd, J =9.15, 6.22 Hz, 1H), 6.51 (d, J = 9.15 Hz, 1H), 8.72 (s, 1H) 10(48)cycloheptyl

(5R)-3-benzyl- 5-methyl TLC: Rf 0.62 (methylene chloride:methanol = 9:1)NMR (CDCl₃): δ 1.69 (m, 19H), 2.31 (m, 1H), 2.41 (m, 1H), 3.15 (dd, J =9.89, 6.22 Hz, 1H), 3.36 (m, 2H), 3.58 (dd, J = 9.89, 6.22 Hz, 1H), 3.76(m, 1H), 3.95 (m, 2H), 4.61 (d, J = 14.65 Hz, 1H), 4.68 (m, 1H), 5.18(dd, J = 9.15, 6.22 Hz, 1H), 6.42 (d, J = 9.15 Hz, 1H), 7.32 (m, 5H),8.76 (s, 1H) 10(49) cyclohexyl

(5R)-3-benzyl- 5-methyl TLC: Rf 0.60 (methylene chloride:methanol = 9:1)NMR (CDCl₃): δ 1.55 (m, 17H), 2.16 (m, 1H), 2.40 (m, 1H), 3.15 (dd, J =9.89, 6.41 Hz, 1H), 3.35 (m, 2H), 3.58 (dd, J = 9.79, 6.50 Hz, 1H), 3.77(m, 1H), 3.96 (m, 2H), 4.61 (d, J = 14.83 Hz, 1H), 4.69 (m, 1H), 5.18(dd, J = 9.15, 6.22 Hz, 1H), 6.51 (d, J = 9.15 Hz, 1H), 7.36 (m, 5H),8.76 (s, 1H) 10(50) cycloheptyl

(4R)-3-(4- fluorobenzyl)-4-methyl TLC: Rf 0.62 (methylenechloride:methanol = 9:1) NMR (CDCl₃): δ 1.28 (d, J = 6.22 Hz, 3H), 1.67(m, 16H), 2.31 (m, 1H), 2.41 (m, 1H), 2.88 (dd, J = 10.98, 5.86 Hz, 1H),3.37 (m, 3H), 3.83 (m, 1H), 3.96 (m, 2H), 4.16 (d, J = 15.01 Hz, 1H),5.11 (d, J = 15.38 Hz, 1H), 5.19 (dd, J = 9.15, 6.22 Hz, 1H), 6.39 (d, J= 8.79 Hz, 1H), 7.02 (m, 2H), 7.31 (m, 2H), 8.79 (s, 1H) 10(51)cyclohexyl

(4R)-3-(4-fluorobenzyl)- 4-methyl TLC: Rf 0.56 (methylenechloride:methanol = 9:1) NMR (CDCl₃): δ 1.55 (m, 17H), 2.16 (m, 1H),2.40 (m, 1H), 2.88 (dd, J = 10.80, 5.86 Hz, 1H), 3.35 (m, 3H), 3.83 (m,1H), 3.96 (m, 2H), 4.16 (d, J = 15.38 Hz, 1H), 5.11 (d, J = 15.38 Hz,1H), 5.19 (dd, J = 8.97, 6.22 Hz, 1H), 6.47 (d, J = 8.97 Hz, 1H), 7.02(m, 2H), 7.32 (m, 2H), 8.79 (s, 1H) 10(52) cycloheptyl

(4S)-3-(2-methoxyethyl)- 4-methyl) TLC: Rf 0.43 (ethyl acetate:methanol= 9:1) NMR (CDCl₃): δ 1.32 (d, J = 6.22 Hz, 3H), 1.67 (m, 16H), 2.36 (m,2H), 2.86 (dd, J = 10.62, 5.86 Hz, 1H), 3.34 (s, 3H), 3.34 (m, 4H), 3.53(m, 1H), 3.66 (m, 1H), 3.92 (m, 3H), 4.16 (m, 1H), 5.16 (dd, J = 9.52,6.13 Hz, 1H), 6.43 (d, J = 9.52 Hz, 1H), 8.73 (s, 1H) 10(53) cyclohexyl

(4S)-3-(2-methoxyethyl)- 4-methyl) TLC: Rf 0.43 (ethyl acetate:methanol= 9:1) NMR (CDCl₃): δ 1.32 (d, J = 6.22 Hz, 3H), 1.32 (m, 14H), 2.15 (m,1H), 2.39 (m, 1H), 2.86 (dd, J = 10.62, 5.86 Hz, 1H), 3.34 (s, 3H), 3.34(m, 4H), 3.53 (m, 1H), 3.66 (m, 1H), 3.93 (m, 3H), 4.17 (m, 1H), 5.16(dd, J = 9.15, 6.22 Hz, 1H), 6.51 (d, J = 9.15 Hz, 1H), 8.73 (s, 1H)10(54) cycloheptyl

(4S)-3-benzyl- 4-methyl TLC: Rf 0.70 (methylene chloride:methanol = 9:1)NMR (CDCl₃): δ 1.28 (d, J = 6.22 Hz, 3H), 1.65 (m, 16H), 2.31 (m, 1H),2.40 (m, 1H), 2.87 (dd, J = 10.80, 5.68 Hz, 1H), 3.36 (m, 3H), 3.84 (m,1H), 3.95 (m, 2H), 4.16 (d, J = 15.38 Hz, 1H), 5.19 (m, 2H), 6.42 (d, J= 9.15 Hz, 1H), 7.30 (m, 5H), 8.79 (s, 1H) 10(55) cyclohexyl

(4S)-3-benzyl-4-methyl TLC: Rf 0.68 (methylene chloride:methanol = 9:1)NMR (CDCl₃): δ 1.56 (m, 17H), 2.16 (m, 1H), 2.40 (m, 1H), 2.87 (dd, J =10.62, 5.49 Hz, 1H), 3.34 (m, 3H), 3.91 (m, 3H), 4.16 (d, J = 15.74 Hz,1H), 5.16 (m, 2H), 6.51 (d, J = 9.15 Hz, 1H), 7.30 (m, 5H), 8.80 (s, 1H)10(56) cycloheptyl

(4S)-3-(4-fluorobenzyl)- 4-methyl TLC: Rf 0.62 (methylenechloride:methanol = 9:1) NMR: (CDCl₃): δ 1.28 (d, J = 6.22 Hz, 3H), 1.66(m, 16H), 2.31 (m, 1H), 2.40 (m, 1H), 2.88 (dd, J = 10.98, 5.86 Hz, 1H),3.35 (m, 3H), 3.83 (m, 1H), 3.96 (m, 2H), 4.16 (d, J = 15.38 Hz, 1H),5.11 (d, J = 15.38 Hz, 1H), 5.19 (dd, J = 9.15, 6.22 Hz, 1H), 6.39 (d, J= 9.15 Hz, 1H), 7.04 (m, 2H), 7.32 (m, 2H), 8.78 (s, 1H) 10(57)cyclohexyl

(4S)-3-(4-fluorobenzyl)- 4-methyl TLC: Rf 0.58 (methylenechloride:methanol = 9:1) NMR (CDCl₃): δ 1.55 (m, 17H), 2.16 (m, 1H),2.41 (m, 1H), 2.88 (dd, J = 10.62, 5.86 Hz, 1H), 3.35 (m, 3H), 3.84 (m,1H), 3.96 (m, 2H), 4.16 (d, J = 15.38 Hz, 1H), 5.11 (d, J = 15.38 Hz,1H), 5.19 (dd, J = 8.79, 6.22 Hz, 1H), 6.47 (d, J = 8.79 Hz, 1H), 7.03(m, 2H), 7.32 (m, 2H), 8.79 (s, 1H) 10(58) cycloheptyl

(4R)-4-ethyl-3-(4- fluorobenzyl) TLC: Rf 0.63 (methylenechloride:methanol = 10:1) NMR (CDCl₃): δ 0.90 (t, J = 7.51 Hz, 3H), 1.65(m, 18H), 2.30 (m, 1H), 2.43 (m, 1H), 2.98 (dd, J = 10.98, 5.68 Hz, 1H),3.28 (dd, J = 10.98, 6.96 Hz, 1H), 3.37 (m, 2H), 3.64 (m, 1H), 3.95 (m,2H), 4.17 (d, J = 15.38 Hz, 1H), 5.11 (d, J = 15.38 Hz, 1H), 5.18 (dd, J= 8.97, 6.04 Hz, 1H), 6.39 (d, J = 8.97 Hz, 1H), 7.02 (m, 2H), 7.30 (m,2H), 8.77 (s, 1H) 10(59) cycloheptyl

(5R)-3-ethyl-5-methyl TLC: Rf 0.14 (chloroform:methanol = 40:1) NMR(CDCl₃): δ 1.20 (t, J = 7.14 Hz, 3H), 1.64 (m, 19H), 2.36 (m, 2H), 3.34(m, 3H), 3.53 (m, 2H), 3.76 (m, 2H), 3.95 (m, 2H), 5.14 (m, 1H), 6.45(d, J = 8.79 Hz, 1H), 8.69 (s, 1H) 10(60) cyclohexyl

(5R)-3-ethyl-5-methyl TLC: Rf 0.17 (chloroform:methanol = 40:1) NMR(CDCl₃): δ 1.48 (m, 20H), 2.14 (m, 1H), 2.39 (m, 1H), 3.31 (m, 3H), 3.53(m, 2H), 3.75 (m, 2H), 3.96 (m, 2H), 5.15 (m, 1H), 6.55 (d, J = 9.15 Hz,1H), 8.70 (s, 1H) 10(61) cycloheptyl

(4S)-3-ethyl-4-methyl TLC: Rf 0.57 (methylene chloride:methanol = 9:1)NMR (CDCl₃): δ 1.19 (t, J = 7.14 Hz, 3H), 1.33 (d, J = 6.22 Hz, 3H),1.70 (m, 16H), 2.35 (m, 2H), 2.85 (m, 1H), 3.28 (m, 4H), 3.78 (m, 1H),3.99 (m, 3H), 5.15 (m, 1H), 6.45 (d, J = 9.70 Hz, 1H), 8.73 (s, 1H)10(62) cycloheptyl

(4R)-3,4-dimethyl TLC: Rf 0.35 (methylene chloride:methanol = 9:1) NMR(CDCl₃): δ 1.33 (d, J = 6.22 Hz, 3H), 1.68 (m, 16H), 2.36 (m, 2H), 2.88(dd, J = 10.80, 6.04 Hz, 1H), 2.98 (m, 3H), 3.35 (m, 3H), 3.89 (m, 3H),5.15 (dd, J = 9.15, 6.22 Hz, 1H), 6.46 (d, J = 9.15 Hz, 1H), 8.73 (s,1H).

Example R^(L) R⁷ Configration at * 10(63) cycloheptyl

S TLC: Rf 0.53 (methylene chloride:methanol = 9:1): H-NMR (CDCl₃): δ1.89 (m, 22H), 3.08 (m, 1H), 3.36 (m, 4H), 3.57 (dt, J = 11.19, 7.86 Hz,1H), 3.94 (m, 2H), 4.31 (m, 1H), 5.11 (dd, J = 8.93, 6.46 Hz, 1H), 6.48(d, J = 9.34 Hz, 1H), 8.76 (s, 1H) 10(64) cycloheptyl

R TLC: Rf 0.53 (methylene chloride:methanol = 9:1): H-NMR (CDCl₃): δ1.90 (m, 22H), 3.08 (m, 1H), 3.36 (m, 4H), 3.56 (dt, J = 11.26, 7.83 Hz,1H), 3.95 (m, 2H), 4.31 (m, 1H), 5.11 (dd, J = 9.07, 6.59 Hz, 1H), 6.48(d, J = 9.34 Hz, 1H), 8.77 (s, 1H) 10(65) cyclohexyl

R TLC: Rf 0.65 (methylene chloride:methanol = 9:1): H-NMR (CDCl₃): δ1.56 (m, 15H), 2.24 (m, 5H), 3.08 (t, J = 10.30 Hz, 1H), 3.36 (m, 4H),3.56 (dt, J = 11.26, 7.83 Hz, 1H), 3.95 (m, 2H), 4.31 (m, 1H), 5.11 (dd,J = 9.07, 6.59 Hz, 1H), 6.57 (d, J = 8.79 Hz, 1H), 8.77 (s, 1H) 10(66)cycloheptyl

R TLC: Rf 0.70 (methylene chloride:methanol = 9:1): H-NMR (CDCl₃): δ1.42 (m, 23H), 2.18 (m, 5H), 3.07 (m, 1H), 3.37 (m, 2H), 3.56 (m, 1H),4.31 (m, 1H), 5.02 (m, 1H), 6.42 (m, 1H), 8.77 (s, 1H)

Formulation Example 1

The following components were admixed in a conventional method andpunched out to give 100 tablets each containing 50 mg of the activeingredient.

N′-(3-methyl-1,3-thiazolidin-2-ylidene)- 5.0 g[(3S)-3-cyclohexylcarbonylamino-2-oxo- 5-methylhexanohydrazide]hydrochloride carboxymethylcellulose calcium(disintegrating agent) 0.2 gmagnesium stearate (lubricant) 0.1 g microcrystalline cellulose 4.7 g

Formulation Example 2

The following components were admixed in a conventional method, and thesolution was sterilized in a conventional method, placed at 5 ml intoampoules and freeze-dried in a conventional method to thereby obtain 100ampoules each containing 20 mg of the active ingredient.

N′-(3-methyl-1,3-thiazolidin-2-ylidene)- 2.0 g[(3S)-3-cyclohexylcarbonylamino-2-oxo- 5-methylhexanohydrazide]hydrochloride mannitol 20 g distilled water 500 ml

1. A compound of formula (I)

[wherein R is (1) hydrogen, (2) CycA, (3) C1-8 alkyl optionallysubstituted with 1 to 5 groups selected from halogen, CycA, nitro,trifluoromethyl and cyano,

(wherein CycA is a C3-15 mono-, bi- or tri-cyclic carboring or a 3-15membered mono-, bi- or tri-cyclic heteroring comprising 1-4 of nitrogen,1-2 of oxygen and/or 1-2 of sulfur; R¹⁶ is (1) C1-8 alkyl, (2) C2-8alkenyl, (3) C2-8 alkynyl, (4) CycA or (5) C1-8 alkyl, C2-8 alkenyl orC2-8 alkynyl substituted with 1 to 5 groups selected from halogen,nitro, trifluoromethyl, cyano, CycA, —NR¹⁸R¹⁹, —OR¹⁸, —SR¹⁸,—NHC(O)-CycA and —NHC(O)—(C1-8 alkyl); R¹⁷, R¹⁸ and R¹⁹ are eachindependently, hydrogen, C1-4 alkyl, CycA, C1-4 alkyl substituted withCycA), AA¹ is (1) a bond, or

(wherein R¹ and R² are each independently, (i) hydrogen, (ii) C1-8alkyl, (iii) CycA or (iv) C1-8 alkyl substituted with 1 to 5 groupsselected from the following (a) to (j): (a) —NR²¹R²², (b) —OR²³, (c)—SR²³, (d) —COR²⁴, (e) —NR²⁵C(O)NR²¹R²², (f) guanidino, (g) amidino, (h)CycA, (j) —NR²⁵SO₂R²¹; or R¹ and R² are taken together to form C2-8alkylene (wherein one carbon of the alkylene chain may be replaced byoxygen, sulfur or —NR²⁰— and the alkylene may be substituted with—NR²¹R²², —OR²³ or oxo), (wherein R²⁰ is hydrogen, C1-4 alkyl,—C(O)O—(C1-4 alkyl), CycA or C1-4 alkyl substituted with CycA; R²¹, R²²,R²³ and R²⁵ are each independently, hydrogen, C1-4 alkyl, CycA or C1-4alkyl substituted with CycA; R²⁴ is C1-4 alkyl, CycA, —NR²¹R²², —OR²³,—SR²³ or C1-4 alkyl substituted with CycA), R³ is hydrogen, C1-8 alkyl,CycA or C1-8 alkyl substituted with CycA or R³ may be taken togetherwith R¹ to form C2-6 alkylene (wherein one carbon of the alkylene chainmay be replaced by oxygen, sulfur or —NR²⁰— and the alkylene may besubstituted with —NR²¹R²², —OR²³, —SR²³ or oxo)) or R and AA¹ may betaken together to form

(wherein CycB is a 5-12 membered mono- or bi-cyclic heteroring and theother symbols have the same meaning as hereinbefore), AA² is (1) a bond,

(wherein R⁴ and R⁵ are each independently, (i) hydrogen, (ii) C1-8alkyl, (iii) CycA or (iv) C1-8 alkyl substituted with 1 to 5 groupsselected from the following (a) to (h) and (j): (a) —NR³¹R³², (b) —OR³³,(c) —SR³³, (d) —COR³⁴, (e) —NR³⁵C(O)NR³¹R³², (f) guanidino, (g) amidino,(h) CycA, (j) —NR³⁵SO₂R³¹; or R⁴ and R⁵ may be taken together to formC2-8 alkylene (wherein one carbon of the alkylene chain may be replacedby oxygen, sulfur or —NR³⁰— and the alkylene may be substituted with—NR³¹R³², —OR³³, —SR³³ or oxo), (wherein R³⁰ is hydrogen, C1-4 alkyl,—C(O)O—(C1-4 alkyl), CycA or C1-4 alkyl substituted with CycA; R³¹, R³²,R³³ and R³⁵ are each independently, hydrogen, C1-4 alkyl, CycA or C1-4alkyl substituted with CycA; R³⁴ is C1-4 alkyl, CycA, —NR³¹R³², —OR³³,—SR³³ or C1-4 alkyl substituted with CycA), R⁶ is hydrogen, C1-8 alkyl,CycA or C1-8 alkyl substituted with CycA or R⁶ may be taken togetherwith R⁴ or R to form C2-6 alkylene (wherein one carbon of the alkylenechain may be replaced by oxygen, sulfur or —NR³⁰— and the alkylene maybe substituted with NR³¹R³², OR³³, SR³³ or oxo), R³⁸ is hydrogen, C1-4alkyl, CycA or C1-4 alkyl substituted with CycA or when AA¹ is a bond,R³⁸ may be taken together with R to form C2-6 alkylene (wherein onecarbon of the alkylene chain may be replaced by oxygen, sulfur or —NR³⁷—(wherein R³⁷ is hydrogen or C1-4 alkyl)), CycC is a 3-17 membered mono-or bi-cyclic heteroring, CycD is a C3-14 mono- or bi-cyclic carboring ora 3-14 membered mono- or bi-cyclic heteroring) or AA² may be takentogether with AA¹ to form

(wherein CycE is a 4-18 membered mono- or bi-cyclic heteroring, CycF isa 5-8 membered monocyclic heteroring, and the other symbols have thesame meaning as hereinbefore), R⁷ and R⁸ are each independently (1)hydrogen, (2) C1-8 alkyl, (3) CycA or (4) C1-8 alkyl substituted with 1to 5 groups selected from the following (i)˜(x); (i) —NR⁴¹R⁴², (ii)—OR⁴³, (iii) —SR⁴³, (iv) —COR⁴⁴, (v) —NR⁴⁵C(O)NR⁴¹R⁴², (vi) guanidino,(vii) amidino, (viii) CycA, (ix) —NR⁴⁵SO₂R⁴¹, (x) —P(O)(OR⁴⁶)(OR⁴⁷), orR⁷ and R⁸ may be taken together to form C2-8 alkylene (wherein onecarbon of the alkylene chain may be replaced by oxygen, sulfur or —NR⁴⁰—and the alkylene may be substituted with —NR⁴¹R⁴², —OR⁴³, —SR⁴³ or oxo),R⁴⁰ is hydrogen, C1-4 alkyl, —C(O)O—(C1-4 alkyl), CycA or C1-4 alkylsubstituted with CycA, R⁴¹, R⁴², R⁴³ are each independently hydrogen,C1-4 alkyl, CycA or C1-4 alkyl substituted with CycA, R⁴⁴ is C1-4 alkyl,CycA, —NR⁴¹R⁴², —OR⁴³, —SR⁴³ or C1-4 alkyl substituted with CycA, R⁴⁶and R⁴⁷ are each independently, hydrogen or C1-8 alkyl, R⁹ is hydrogen,C1-8 alkyl, CycA or C1-8 alkyl substituted with CycA or R⁹ may be takentogether with R⁷ or R to form C2-6 alkylene (wherein one carbon of thealkylene chain may be replaced by oxygen, sulfur or —NR⁴⁰— and thealkylene may be substituted with —NR⁴¹R⁴², —OR⁴³, —SR⁴³ or oxo),(wherein all symbols have the same meaning as hereinbefore),

is a group selected from the following (1), (2) or (3);

[wherein R^(A1) and R^(A2) are each independently, (i) hydrogen, (ii)C1-8 alkyl, (iii) C2-8 alkenyl, (iv) —NR^(Z1)R^(Z2), (v) —OR^(Z3), (vi)—SR^(Z3), (vii) —COR^(Z4), (viii) CycP or (ix) C1-8 alkyl or C2-8alkenyl substituted with 1 to 5 groups selected from CycP,—NR^(Z1)R^(Z2), —OR^(Z3), —SR^(Z3), —COR^(Z4), —SO₂R^(Z4), —COOR^(Z3),—CONR^(Z1)R^(Z2), —SO₂NR^(Z1)R^(Z2) and —P(O)(OR^(Z5))(OR^(Z6)) (whereinR^(Z1) and R^(Z2) are each independently, hydrogen, C1-8 alkyl, C2-8alkenyl, CycP, C2-8 acyl, or C1-8 alkyl substituted with CycP, C2-8acyl, C1-8 alkoxy, C1-8 alkylthio, C1-8 monoalkylamino or di(C1-8alkyl)amino; R^(Z3) is hydrogen, C1-8 alkyl, C2-8 alkenyl, CycP or C1-8alkyl substituted with 1 to 5 groups selected from CycP, C1-8 alkoxy,C1-8 alkylthio, amino, C1-8 monoalkylamino, di(C1-8 alkyl)amino and C2-8acyl; R^(Z4) is C1-8 alkyl, CycP or C1-8 alkyl substituted with 1 to 5groups selected from CycP, C1-8 alkoxy, C1-8 alkylthio, mono(C1-8alkyl)amino, di(C1-8 alkyl)amino or C2-8 acyl; R^(Z5) and R^(Z6) areeach independently, hydrogen or C1-8 alkyl, CycP is a C4-10 carboring or5-10 membered heteroring comprising 1-4 of nitrogen, 1-2 of oxygenand/or 1-2 of sulfur and R¹⁰ is a hydrogen atom or C1-4 alkyl) or R^(A1)and R^(A2) may be taken together with the adjacent carbon to representCycH

(wherein CycH is a C4-10 mono- or bi-cyclic carboring or 4-10 memberedmono- or bi-cyclic heteroring and R¹⁰ has the same meaning ashereinbefore) or R^(A1) and R¹⁰ may be taken together with the adjacentcarbon and nitrogen to represent

(wherein CycJ is a 5-10 membered mono- or bi-cyclic heteroring andR^(A2) has the same meaning as hereinbefore)],

[wherein R^(A3) is (i) C1-8 alkyl, (ii) C2-8 alkenyl, (iii)—NR^(Z1)R^(Z2), (ix) —OR^(Z3), (v) —SR^(Z3), (vi) —COR^(Z4), (vii) CycPor (viii) C1-8 alkyl or C2-8 alkenyl substituted with 1 to 5 groupsselected from —NR^(Z1)R^(Z2), —OR^(Z3), —SR^(Z3), —COR^(Z4), —SO₂R^(Z4),CycP and —P(O)(OR^(Z5))(OR^(Z6)) (wherein all symbols have the samemeaning as hereinbefore), R^(A4) is (i) hydrogen, (ii) C1-8 alkyl, (iii)C2-8 alkenyl, (iv) —COR^(Z4), (v) CycP or (vi) C1-8 alkyl or C2-8alkenyl substituted with 1 to 5 groups selected from CycP,—NR^(Z1)R^(Z2), —OR^(Z3), —SR^(Z3), —COR^(Z4), —SO₂R^(Z4), —COOR^(Z3),—CONR^(Z1)R^(Z2), —SO₂NR^(Z1)R^(Z2) and —P(O)(OR^(Z5))(OR^(Z6)) (whereinall symbols have the same meaning as hereinbefore), R¹⁰ has the samemeaning as hereinbefore, or R^(A3) and R^(A4) may be taken together withthe adjacent carbon and nitrogen to represent

(wherein CycK is a 5-10 membered mono- or bi-cyclic heteroring and R¹⁰has the same meaning as hereinbefore), R^(A3) and R¹⁰ may be takentogether with the adjacent carbon and nitrogens to represent

(wherein CycL is a 5-10 membered mono- or bi-cyclic heteroring andR^(A4) has the same meaning as hereinbefore)],

[wherein n is an integer of 1 or 2, and the other symbols have the samemeaning as hereinbefore, and R^(A3) and R^(A4) may be taken togetherwith the adjacent nitrogen and sulfur to represent

(wherein CycM is a 5-10 membered mono- or bi-cyclic heteroring and theother symbols have the same meaning as hereinbefore) or R^(A3) and R¹⁰may be taken together with the nitrogens and sulfur to represent

(wherein CycN is a 5-10 membered mono- or bi-cyclic heteroring and theother symbols have the same meaning as hereinbefore)], CycA's, CycB,CycC, CycD, CycE, CycF, CycH, CycJ, CycK, CycL, CycM, CycN and CycP maybe each independently substituted with 1-5 of R²⁷, R²⁷ is (1) C1-8alkyl, (2) halogen, (3) —NR¹¹R¹², (4) —OR¹³, (5) —SR¹³, (6) CycG, (7)nitro, (8) cyano, (9) oxo, (10) —COR¹⁴, (11) —SO₂R¹⁴, (12)—P(O)(OR¹⁵)(OR¹⁶), (13) guanidino, (14) amidino or (15) C1-8 alkylsubstituted with 1 to 5 groups selected from the following (i)-(xii):(i) halogen, (ii) —NR¹¹R¹², (iii) —OR¹³, (iv) —SR¹³, (v) CycG, (vi)nitro, (vii) cyano, (viii) —COR¹⁴, (ix) —SO₂R¹⁴, (x) —P(O)(OR¹⁵)(OR¹⁶),(xi) guanidino, (xii) amidino (wherein R¹¹ and R¹² are eachindependently, hydrogen, C1-4 alkyl, C1-4 alkoxy, —C(O)O—(C1-4 alkyl),CycG or C1-4 alkyl substituted with CycG, R¹³ is hydrogen, C1-4 alkyl,trifluoromethyl, CycG or C1-4 alkyl substituted with CycG, CycG's areeach independently, a C4-10 mono- or bi-cyclic carboring or a 5-10membered mono- or bi-cyclic heteroring comprising 1-4 of nitrogen, 1-2of oxygen and/or 1-2 of sulfur, R¹⁴ is C1-8 alkyl, CycG, —NR¹¹R¹²,—OR¹³, —SR¹³, —SR¹³ or C1-8 alkyl substituted with CycG, —NR¹¹R¹², —OR¹³or —SR¹³, R¹⁵'s are each independently, hydrogen or C1-8 alkyl), when asaturated carbon atom exists in CycH, CycJ, CycK, CycL, CycM or CycN,the saturated carbon atom may form a spiro bond with CycQ (wherein CycQis a C3-10 saturated or partially unsaturated mono-cyclic carboring or a5-8 membered saturated or partially unsaturated monocyclic heteroringcomprising 1 of —NR^(Q)— (wherein R^(Q) is C1-8 alkyl, C2-8 acyl,—SO₂—(C1-8 alkyl), benzoyl, benzenesulfonyl, or toluenesulfonyl), 1 ofoxygen and/or 1 of sulfur which may be oxidized)] or a pharmaceuticallyacceptable salt thereof.
 2. The compound according to claim 1, whereinthe compound of formula (I) is the compound of formula (I-i)

(wherein all symbols have the same meaning as claim 1) or apharmaceutically acceptable salt thereof.
 3. The compound according toclaim 1, wherein the compound of formula (I) is the compound of formula(I-ii)

(wherein all symbols have the same meaning as claim 1) or apharmaceutically acceptable salt thereof.
 4. The compound according toclaim 1, wherein the compound of formula (I) is the compound of formula(I-iii)

(wherein all symbols have the same meaning as claim 1) or apharmaceutically acceptable salt thereof.
 5. A pharmaceuticalcomposition comprising the compound of formula (I) or a pharmaceuticallyacceptable salt thereof which is described in claim 1, and apharmaceutically acceptable carrier. 6.-10. (canceled)
 11. A medicinalformulation comprising the compound of formula (I) or a pharmaceuticallyacceptable salt thereof described in claim 1, combined with at least onemember selected from a bisphosphonate, a steroidal agent, menatetrenone,alfacalcidol, falecalcitriol, calcitriol,1α,25-dihydroxycholecalciferol, dihydrotachysterol, ST-630, KDR, ED-71,rocaltrol, a caspase-1 inhibitor, a PTHrP derivative, a PG ligand, ametalloprotease inhibitor, a farnesoid X receptor agonist, an estrogenagonist and a progesterone agonist. 12.-16. (canceled)
 17. A method forthe treatment of lung cancer, bladder cancer, breast cancer, prostatecancer, myasthenia gravis, myodystrophy or malaria in a mammalcharacterized by administering to a mammal an effective amount of thecompound of formula (I) or a pharmaceutically acceptable salt thereofdescribed in claim
 1. 18. A method for the treatment of osteoporosis,rheumatoid arthritis, arthritis, osteoarthritis, hypocalcaemia orosteometastasis of cancer in a mammal characterized by administering toa mammal an effective amount of the compound of formula (I) or apharmaceutically acceptable salt thereof described in claims
 1. 19-22.(canceled)
 23. The compound according to claim 1, wherein the compoundis selected from the group consisting of:N′-(3-t-butyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-2-oxo-3-(tetrahydropyran-4-yl)propionohydrazide]hydrochloride;N-((1S)-3-methyl-1-{oxo[(2Z)-2-(3-phenyl-1,3-thiazolidin-2-ylidene)hydrazino]acetyl}butyl)cyclohexanecarboxamide;N-{1-(1-benzoylpiperidin-4-yl)-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{1-[1-(2,2-dimethylpropanoyl)piperidin-4-yl]-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{1-{1-[(4-methylphenyl)sulfonyl]piperidin-4-yl}-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N′-(3-methyl-1,3-thiazolidin-2-ylidene)-[N-(3-cyclohexylcarbonyl)-N-methylamino-4-methyl-2-oxopentanohydrazide]hydrochloride;N′-(1,3-dimethylimidazolidin-2-ylidene)-3-cyclohexyl-3-cyclohexylcarbonylamino-2-oxopropanohydrazide]dihydrochloride;N-{3-[(2Z)-2-(1-methyl-3-oxa-1-azaspiro[4.4]non-2-ylidene)hydrazino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cyclohexanecarboxamidehydrochloride;N-{3-[(2Z)-2-(1-methyl-3-oxa-1-azaspiro[4.5]dec-2-ylidene)hydrazino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cyclohexanecarboxamidehydrochloride;N′-(1-methylpyrrolidine-2-ylidene)-(3-cyclohexylcarbonylamino-5-methyl-2-oxohexanohydrazide)hydrochloride;N-{1-isopropyl-3-[(3-methyl-2-oxoimidazolidin-1-yl)amino]-2,3-dioxopropyl}cyclohexanecarboxamide;N-{1-isopropyl-2,3-dioxo-3-[(2-oxo-1,3-oxazolidin-3-yl)amino]propyl}cyclohexanecarboxamide;N-{3,3-dimethyl-1-[[(3-methyl-2-oxoimidazolidin-1-yl)amino](oxo)acetyl]butyl}cyclohexanecarboxamide;N-{3-methyl-1-[[(3-methyl-2-oxoimidazolidin-1-yl)amino](oxo)acetyl]butyl}cyclohexanecarboxamide;N-(3,3-dimethyl-1-{oxo[(2-oxopyrrolidin-1-yl)amino]acetyl}butyl)cycloheptanecarboxamide;N-{1-[[(1,1-dioxidoisothiazolidin-2-yl)amino](oxo)acetyl]-3,3-dimethylbutyl}cycloheptanecarboxamide;N-{2,3-dioxo-3-[(2-oxopyrrolidin-1-yl)amino]-1-tetrahydro-2H-pyran-4-ylpropyl}cyclohexanecarboxamide;N-{3,3-dimethyl-1-[oxo(3-oxopyrazolidin-1-yl)acetyl]butyl}cyclohexanecarboxamide;N-{1-cyclohexyl-3-[(2E)-2-(1-methylpyrrolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{2,3-dioxo-3-[(1-oxo-1,3-dihydro-2H-isoindol-2-yl)amino]-1-tetrahydro-2H-pyran-4-ylpropyl}cyclohexanecarboxamide;N-[2,3-dioxo-3-(4-oxo-3,4-dihydrophthalazin-2(1H)-yl)-1-tetrahydro-2H-pyran-4-ylpropyl]cyclohexanecarboxamide;N-{1-cyclohexyl-3-[(3-methyl-2-oxoimidazolidin-1-yl)amino]-2,3-dioxopropyl}cycloheptanecarboxamide;N-{3-[(3-methyl-2-oxoimidazolidin-1-yl)amino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cyclohexanecarboxamide;N-{3-[(3-benzyl-2-oxoimidazolidin-1-yl)amino]-1-cyclohexyl-2,3-dioxopropyl}cycloheptanecarboxamide;N-{3-[(3-benzyl-2-oxoimidazolidin-1-yl)amino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cyclohexanecarboxamide;N-(3-{[(7aR)-3-oxotetrahydro-1H-pyrrolo[1,2-c]imidazol-2(3H)-yl]amino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-(3-{[(7aR)-3-oxotetrahydro-1H-pyrrolo[1,2-c]imidazol-2(3H)-yl]amino}-1-cyclohexyl-2,3-dioxopropyl)cycloheptanecarboxamide;N′-benzylidene-[(3S)-3-cyclohexylcarbonylamino-5-methyl-2-oxohexanohydrazide];N-{(1S)-3-methyl-[[2-(1-methylethylidene)hydrazino](oxo)acetyl]butyl}cyclohexanecarboxamide;N-((1S)-3-methyl-1-{oxo[(2E)-2-(1-phenylethylidene)hydrazino]acetyl}butyl)cyclohexanecarboxamide;N-{(1S)-1-[(2-cyclopentylidenehydrazino)(oxo)acetyl]-3-methylbutyl}cyclohexanecarboxamide;N-(3-methyl-1-{oxo[(2E)-2-(pyridin-2-ylmethylene)hydrazino]acetyl}butyl)cyclohexanecarboxamidehydrochloride;N-{(1S)-1-[[(2E)-2-(3-furylmethylene)hydrazino](oxo)acetyl]-3-methylbutyl}cyclohexanecarboxamide;N-{(1S)-3-methyl-1-[[(2E)-2-(3-methylbutylidene)hydrazino](oxo)acetyl]butyl}cyclohexanecarboxamide;N-((1S)-3-methyl-1-{oxo[(2E)-2-(tetrahydro-2H-pyran-4-ylmethylene)hydrazino]acetyl}butyl)cyclohexanecarboxamide;N-{(1S)-3-methyl-1-[oxo(2-tetrahydro-4H-pyran-4-ylidenehydrazino)acetyl]butyl}cyclohexanecarboxamide;N-(3,3-dimethyl-1-{oxo[(2E)-2-(1-pyridin-2-ylethylidene)hydrazino]acetyl}butyl)cyclohexanecarboxamidehydrochloride;N-(3,3-dimethyl-1-{oxo[(2E)-2-(1-pyridin-4-ylethylidene)hydrazino]acetyl}butyl)cyclohexanecarboxamidehydrochloride;N-{3,3-dimethyl-1-[oxo((2E)-2-{1-[3-(trifluoromethyl)phenyl]ethylidene}hydrazino)acetyl]butyl}cyclohexanecarboxamide;N-{3,3-dimethyl-1-[oxo((2E)-2-{1-[4-(trifluoromethyl)phenyl]ethylidene}hydrazino)acetyl]butyl}cyclohexanecarboxamide;N-acetyl-N′-phenyl-[(3S)-3-cyclohexylcarbonylamino-5-methyl-2-oxohexanohydrazide];N′-acetyl-N′-cyclohexyl-[3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-oxopropanohydrazide];1-(3-cyclohexylcarbonylamino-5,5-dimethyl-2-oxohexanoylamino)-2,5-dioxopyrrolidine;N-{3-[(2,5-dioxopyrrolidin-1-yl)amino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cyclohexanecarboxamide;N-{1-cyclohexyl-3-[(2,5-dioxopyrrolidin-1-yl)amino]-2,3-dioxopropyl}cyclohexanecarboxamide;N-{3-[(2,5-dioxopyrrolidin-1-yl)amino]-2,3-dioxo-1-phenylpropyl}cyclohexanecarboxamideN-{3-[(4,4-dimethyl-2,6-dioxopiperidin-1-yl)amino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cyclohexanecarboxamide;N-{3-[(3,3-dimethyl-2,6-dioxopiperidin-1-yl)amino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cyclohexanecarboxamide;N-{1-cyclohexyl-3-[(3,5-dioxomorpholin-4-yl)amino]-2,3-dioxopropyl}cyclohexanecarboxamide;N-{3-[(1,3-dioxo-1,3-dihydro-2H-isoindol-2-yl)amino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cyclohexanecarboxamide;N-{(1S)-3-[(2,5-dioxopyrrolidin-1-yl)amino]-1-isopropyl-2,3-dioxopropyl}cyclohexanecarboxamide;N-{1-cyclohexyl-3-[(3,3-dimethyl-2,5-dioxopyrrolidin-1-yl)amino]-2,3-dioxopropyl}cyclohexanecarboxamide;N-{1-[[3,3-dimethyl-2,5-dioxopyrrolidin-1-yl)amino](oxo)acetyl]-3,3-dimethylbutyl}cyclohexanecarboxamide;(2E)-N-{1-cyclohexyl-3-[(2,5-dioxopyrrolidin-1-yl)amino]-2,3-dioxopropyl}-4,4-dimethylpent-2-enamide;N-{3-[(2,5-dioxopyrrolidin-1-yl)amino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cycloheptanecarboxamide;N-{1-cyclohexyl-3-[(2,5-dioxopyrrolidin-1-yl)amino]-2,3-dioxopropyl}cycloheptanecarboxamide;N-{(1S)-1-cyclohexyl-3-[(2,5-dioxopyrrolidin-1-yl)amino]-2,3-dioxopropyl}cycloheptanecarboxamide;N-{(1R)-1-cyclohexyl-3-[(2,5-dioxopyrrolidin-1-yl)amino]-2,3-dioxopropyl}cycloheptanecarboxamide;N²-(tert-butoxycarbonyl)-N¹-{1-cyclohexyl-3-[(2,5-dioxopyrrolidin-1-yl)amino]-2,3-dioxopropyl}-L-leucinamide;N-[3-(2-acetylhydrazino)-1-cyclohexyl-2,3-dioxopropyl]cycloheptanecarboxamide;4-(2-{3-[(cycloheptylcarbonyl)amino]-3-cyclohexyl-2-oxopropanoyl}hydrazino)-4-oxobutanoicacid;N¹-{1-cyclohexyl-3-[(2,5-dioxopyrrolidin-1-yl)amino]-2,3-dioxopropyl}-N²-(methoxycarbonyl)-L-leucinamide;N²-(tert-butoxycarbonyl)-N¹-{3-[(2,5-dioxopyrrolidin-1-yl)amino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}-L-leucinamide;3-(3-cycloheptylcarbonylamino-3-cyclohexyl-2-oxopropanoyl)-1,2,3,4-tetrahydrophthalazin-1,4-dione;N-methyl-N′-(3-methyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-5-methyl-2-oxohexanohydrazide]hydrochloride;N′-(3-methyl-4-oxo-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-oxopropanohydrazide];N-{1-cyclohexyl-3-[(2Z)-2-(3-methyl-4-oxo-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamide;N-{3-[(2Z)-2-(3-allyl-4-oxo-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cyclohexanecarboxamide;N-{3-[(2Z)-2-(3-benzyl-4-oxo-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cyclohexanecarboxamide;N′-(3-propyl-1,3-thiazolidin-2-ylidene)-(3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-oxopropanohydrazide)hydrochloride;N-{(1S)-3-methyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}cyclohexanecarboxamidehydrochloride;4-bromo-N-{(1S)-3-methyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}benzamidehydrochloride;N-{(1S)-1-isopropyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{(1S)-3,3-dimethyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}cycloheptanecarboxamidehydrochloride;N-{1-[({3-methyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}amino)carbonyl]cyclohexyl}benzamidehydrochloride;N-{(1S)-2-methyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}cyclohexanecarboxamidehydrochloride;N-{(1S)-1-benzyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{(1S)-1-tert-butyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{(1S)-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]pentyl}cyclohexanecarboxamidehydrochloride;N-{3,3-dimethyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}cyclohexanecarboxamidehydrochloride;N-{3-methoxy-3-methyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}cyclohexanecarboxamidehydrochloride;N-{(1S)-3-methyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}acetamidehydrochloride;N-{(1S)-3-methyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}tetrahydro-2H-pyran-4-carboxamidehydrochloride;2,2-dimethyl-N-{(1S)-3-methyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}propanamidehydrochloride;N-{(1S)-3-methyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}benzamidehydrochloride;N-{(1S)-3-methyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}cycloheptanecarboxamidehydrochloride;N-{(1S)-1-[[(2Z)-2-(3-ethyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]-3-methylbutyl}cyclohexanecarboxamidehydrochloride;N-((1S)-3-methyl-1-{oxo[(2Z)-2-(3-propyl-1,3-thiazolidin-2-ylidene)hydrazino]acetyl}butyl)cyclohexanecarboxamidehydrochloride;N-{3,3-dimethyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}cycloheptanecarboxamidehydrochloride;N-{(1S)-3-methyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}-2-phenylacetamidehydrochloride;N-{(1S)-3-methyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}-2-phenoxyacetamidehydrochloride;N-{(1S)-1-[[(2Z)-2-(3-benzyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]-3-methylbutyl}cyclohexanecarboxamidehydrochloride;N-{(1S)-1-[[(2Z)-2-(3-isopropyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]-3-methylbutyl}cyclohexanecarboxamidehydrochloride;N-{3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cyclohexanecarboxamidehydrochloride;N-{1-cyclohexyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;(2E)-4,4-dimethyl-N-{(1S)-3-methyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}pent-2-enamidehydrochloride;N-{(1S)-1-[{(2Z)-2-[3-(2-hydroxyethyl)-1,3-thiazolidin-2-ylidene]hydrazino}(oxo)acetyl]-3-methylbutyl}cyclohexanecarboxamidehydrochloride;N-{1-cyclopropyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{1-cyclopentyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]-2-propylpentyl}cyclohexanecarboxamidehydrochloride;N-{3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxo-1-phenylpropyl}cyclohexanecarboxamidehydrochloride; isobutyl(1S)-3-methyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butylcarbamatehydrochloride;N-{3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxo-1-piperidin-4-ylpropyl}cyclohexanecarboxamidedihydrochloride;N-{3-[(2Z)-2-(3-benzyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cyclohexanecarboxamidehydrochloride;N-{1-(1-acetylpiperidin-4-yl)-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{(1S,2R)-2-[({(1S)-3-methyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}amino)carbonyl]cyclohexyl}benzamidehydrochloride; methyl1-[2-({(1S)-1-isopropyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}amino)-2-oxoethyl]-6-oxo-2-phenyl-1,6-dihydropyrimidin-5-ylcarbamatehydrochloride;N-{2-ethyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}cyclohexanecarboxamidehydrochloride; tert-butyl4-{1-[(cyclohexylcarbonyl)amino]-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}piperidine-1-carboxylatehydrochloride;N-{3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxo-1-[4-(trifluoromethyl)phenyl]propyl}cyclohexanecarboxamide;N-{1-(4-methoxyphenyl)-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{1-[1-(methylsulfonyl)piperidin-4-yl]-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{1-(2-methylphenyl)-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride; isobutyl1-(2-methylphenyl)-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropylcarbamatehydrochloride; methyl1-(2-methylphenyl)-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropylcarbamatehydrochloride; isobutyl1-(2,6-dimethylphenyl)-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropylcarbamatehydrochloride;N-{1-(2-chlorophenyl)-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{1-(2-methoxyphenyl)-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride; isobutyl1-(2-methoxyphenyl)-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropylcarbamatehydrochloride;N-((1S)-3-methyl-1-{oxo[(2Z)-2-(3,5,5-trimethyl-1,3-thiazolidin-2-ylidene)hydrazino]acetyl}butyl)cyclohexanecarboxamidehydrochloride;N-{2,3-dioxo-1-tetrahydro-2H-pyran-4-yl-3-[(2Z)-2-(3,5,5-trimethyl-1,3-thiazolidin-2-ylidene)hydrazino]propyl}cyclohexanecarboxamidehydrochloride;N-{3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cycloheptanecarboxamidehydrochloride;N-{(1S)-1-isopropyl-2,3-dioxo-3-[(2Z)-2-(3-propyl-1,3-thiazolidin-2-ylidene)hydrazino]propyl}cyclohexanecarboxamidehydrochloride;N-{(1S)-3-[(2Z)-2-(3-benzyl-1,3-thiazolidin-2-ylidene)hydrazino]-1-isopropyl-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{(1S)-1-cyclohexyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{3-[(2Z)-2-(3-benzyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cycloheptanecarboxamidehydrochloride;(2E)-N-{3-[(2Z)-2-(3-benzyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}-4,4-dimethylpent-2-enamidehydrochloride;(2E)-4,4-dimethyl-N-[3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl]pent-2-enamidehydrochloride;(2E)-N-{1-cyclohexyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}-4,4-dimethylpent-2-enamidehydrochloride;(2E)-N-(1-cyclohexyl-3-{(2Z)-2-[3-(2-hydroxyethyl)-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxopropyl)-4,4-dimethylpent-2-enamidehydrochloride;N-(1-cyclohexyl-3-{(2Z)-2-[3-(2-hydroxyethyl)-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxopropyl)cyclohexanecarboxamidehydrochloride;N-{(1R)-1-cyclohexyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{1-cyclohexyl-3-[(2Z)-2-(3-{4-[(dimethylamino)methyl]benzyl}-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidedihydrochloride;N-{1-cyclohexyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cycloheptanecarboxamidehydrochloride;N-{(1S)-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cycloheptanecarboxamidehydrochloride;N-{(1R)-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}cycloheptanecarboxamidehydrochloride;N-{(1R)-1-isopropyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N-{(1R)-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]pentyl}cyclohexanecarboxamidehydrochloride;N-{(1R)-3,3-dimethyl-1-[[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino](oxo)acetyl]butyl}cyclohexanecarboxamidehydrochloride;N-{(1R)-1-cyclopropyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cyclohexanecarboxamidehydrochloride;N′-[3-methyl-1,3-thiazolidin-2-ylidene]-[3-(N-phenylsulfonyl-N-methylamino)-2-oxo-4-methylpentanohydrazide]hydrochloride;N′-(3-methyl-1,3-perhydrothiazin-2-ylidene)-[3-cyclohexylcarbonylamino-2-oxo-3-(tetrahydropyran-4-yl)hexanohydrazide]hydrochloride;N′-(3-methyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-3-methyl-2-oxobutanohydrazide]hydrochloride;N′-(3-methyl-1,3-perhydrothiazin-2-ylidene)-(3-cyclohexylcarbonylamino-2-oxo-5-methylhexanohydrazide);N′-(3-methyl-1,3-perhydrothiazin-2-ylidene)-[3-(1-benzoylaminocyclohexylcarbonylamino)-5-methyl-2-oxohexanohydrazide];N′-(3,4,4-trimethyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-oxopropanohydrazide]hydrochloride;N-(3-methyl-1-{oxo[(2Z)-2-(3,4,4-trimethyl-1,3-thiazolidin-2-ylidene)hydrazino]acetyl}butyl)cyclohexanecarboxamidehydrochloride;N-(3,3-dimethyl-1-{oxo[(2Z)-2-(3,4,4-trimethyl-1,3-thiazolidin-2-ylidene)hydrazino]acetyl}butyl)cyclohexanecarboxamidehydrochloride;(2E)-N-{2,3-dioxo-1-tetrahydro-2H-pyran-4-yl-3-[(2Z)-2-(3,4,4-trimethyl-1,3-thiazolidin-2-ylidene)hydrazino]propyl}-4,4-dimethylpent-2-enamidehydrochloride;N-{2,3-dioxo-1-tetrahydro-2H-pyran-4-yl-3-[(2Z)-2-(3,4,4-trimethyl-1,3-thiazolidin-2-ylidene)hydrazino]propyl}cycloheptanecarboxamidehydrochloride;N-{1-cyclohexyl-2,3-dioxo-3-[(2Z)-2-(3,4,4-trimethyl-1,3-thiazolidin-2-ylidene)hydrazino]propyl}cyclohexanecarboxamidehydrochloride;N-{1-cyclohexyl-2,3-dioxo-3-[(2Z)-2-(3,4,4-trimethyl-1,3-thiazolidin-2-ylidene)hydrazino]propyl}cycloheptanecarboxamidehydrochloride;N-{(1S)-1-isopropyl-2,3-dioxo-3-[(2Z)-2-(3,4,4-trimethyl-1,3-thiazolidin-2-ylidene)hydrazino]propyl}cyclohexanecarboxamidehydrochloride;N′-(4,4-dimethyl-3-ethyl-1,3-thiazolidin-2-ylidene)-[3-cyclohexylcarbonylamino-3-(tetrahydropyran-4-yl)-2-oxopropanohydrazide]hydrochloride;N′-[1-aza-1-methyl-3-thiaspiro[4.4]non-2-ylidene)-[3-cyclohexyl-3-cyclohexylcarbonylamino-2-oxopropionohydrazide]hydrochloride;N′-(3-ethyl-4-methyl-1,3-thiazolidin-2-ylidene)[3-cycloheptylcarbonylamino-3-[(3S)-tetrahydropyran-4-yl]-2-oxopropanohydrazide];N-(3-{(2Z)-2-[3-(4-methoxybenzyl)-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-(3-{(2Z)-2-[(4S)-3,4-dimethyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-{(1S)-1-cyclohexyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}cycloheptanecarboxamide;N²-(tert-butoxycarbonyl)-N¹-{3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}-L-leucinamide;N-((1R)-3-{(2Z)-2-[(4S)-3,4-dimethyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-(3-{(2Z)-2-[(4R)-3,4-dimethyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N²-(methoxycarbonyl)-N¹-{3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl}-L-leucinamide;N²-(tert-butoxycarbonyl)-N¹-{1-cyclohexyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}-L-leucinamide;N-(3-{(2Z)-2-[(4R)-3,4-dimethyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N¹-{1-cyclohexyl-3-[(2Z)-2-(3-methyl-1,3-thiazolidin-2-ylidene)hydrazino]-2,3-dioxopropyl}-N²-(methoxycarbonyl)-L-leucinamide;N-(3-{(2Z)-2-[(4R)-4-isopropyl-3-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-(3-{(2Z)-2-[(4R)-4-isobutyl-3-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-(3-{(2Z)-2-[(4R)-4-isopropyl-3-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-(3-{(2Z)-2-[(4R)-4-isobutyl-3-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-(1-cyclohexyl-3-{(2Z)-2-[(4R)-4-isopropyl-3-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxopropyl)cycloheptanecarboxamide;N-(1-cyclohexyl-3-{(2Z)-2-[(4R)-4-isobutyl-3-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxopropyl)cycloheptanecarboxamide;N-(3-{(2Z)-2-[(5R)-3,5-dimethyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-(3-{(2Z)-2-[(5R)-3,5-dimethyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-(1-cyclohexyl-3-{(2Z)-2-[(5R)-3,5-dimethyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxopropyl)cycloheptanecarboxamide;N-(3-{(2Z)-2-[(4R)-3,4-diethyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-(1-cyclohexyl-3-{(2Z)-2-[(4R)-3,4-diethyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxopropyl)cycloheptanecarboxamide;N-((1R)-3-{(2Z)-2-[(4R)-3,4-diethyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-((1R)-3-{(2Z)-2-[(4R)-3-ethyl-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-(3-{(2Z)-2-[(4R)-4-ethyl-3-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-(3-{(2Z)-2-[(4R)-4-ethyl-3-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-(1-cyclohexyl-3-{(2Z)-2-[(4R)-4-ethyl-3-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxopropyl)cycloheptanecarboxamide;N-[2,3-dioxo-3-((2Z)-2-{3-[(1R)-1-phenylethyl]-1,3-thiazolidin-2-ylidene}hydrazino)-1-tetrahydro-2H-pyran-4-ylpropyl]cycloheptanecarboxamide;N-[2,3-dioxo-3-((2Z)-2-{3-[(1R)-1-phenylethyl]-1,3-thiazolidin-2-ylidene}hydrazino)-1-tetrahydro-2H-pyran-4-ylpropyl]cyclohexanecarboxamide;N-((1R)-3-{(2Z)-2-[(4R)-3-ethyl-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-((1S)-3-{(2Z)-2-[(4S)-3-ethyl-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-(3-{(2Z)-2-[(4R)-4-benzyl-3-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-(3-{(2Z)-2-[(4R)-4-benzyl-3-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-(1-cyclohexyl-3-{(2Z)-2-[(4R)-3-ethyl-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxopropyl)cycloheptanecarboxamide;N-((1R)-3-{(2Z)-2-[(4S)-3-benzyl-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-((1R)-3-{(2Z)-2-[(4R)-3-benzyl-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-(3-{(2Z)-2-[(4R)-4-benzyl-3-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-1-cyclohexyl-2,3-dioxopropyl)cycloheptanecarboxamide;N-((1R)-3-{(2Z)-2-[(4R)-3-benzyl-4-ethyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-((1R)-3-{(2Z)-2-[(4R)-3-benzyl-4-ethyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-[1-cyclohexyl-2,3-dioxo-3-((2Z)-2-{3-[(1R)-1-phenylethyl]-1,3-thiazolidin-2-ylidene}hydrazino)propyl]cycloheptanecarboxamide;N-[2,3-dioxo-3-((2Z)-2-{3-[(1S)-1-phenylethyl]-1,3-thiazolidin-2-ylidene}hydrazino)-1-tetrahydro-2H-pyran-4-ylpropyl]cyclohexanecarboxamide;N-(3-{(2Z)-2-[(4R)-3-methyl-4-phenyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-(3-{(2Z)-2-[(4R)-3-methyl-4-phenyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-((1R)-3-{(2Z)-2-[(4R)-3-(2-methoxyethyl)-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-((1R)-3-{(2Z)-2-[(4R)-3-(2-methoxyethyl)-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-((1R)-3-{(2Z)-2-[(4R)-4-ethyl-3-(2-methoxyethyl)-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-((1R)-3-{(2Z)-2-[(4R)-4-ethyl-3-(2-methoxyethyl)-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-((1R)-3-{(2Z)-2-[(5R)-3-benzyl-5-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-((1R)-3-{(2Z)-2-[(5R)-3-benzyl-5-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-((1R)-3-{(2Z)-2-[(4R)-3-(4-fluorobenzyl)-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-((1R)-3-{(2Z)-2-[(4R)-3-(4-fluorobenzyl)-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-((1S)-3-{(2Z)-2-[(4S)-3-(2-methoxyethyl)-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-((1S)-3-{(2Z)-2-[(4S)-3-(2-methoxyethyl)-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-((1S)-3-{(2Z)-2-[(4S)-3-benzyl-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-((1S)-3-{(2Z)-2-[(4S)-3-benzyl-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-((1S)-3-{(2Z)-2-[(4S)-3-(4-fluorobenzyl)-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-((1S)-3-{(2Z)-2-[(4S)-3-(4-fluorobenzyl)-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-((1R)-3-{(2Z)-2-[(4R)-4-ethyl-3-(4-fluorobenzyl)-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-(3-{(2Z)-2-[(5R)-3-ethyl-5-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-(3-{(2Z)-2-[(5R)-3-ethyl-5-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;N-(3-{(2Z)-2-[(4S)-3-ethyl-4-methyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-((1R)-3-{(2Z)-2-[(4R)-3,4-dimethyl-1,3-thiazolidin-2-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-((1R)-3-{(2Z)-2-[(7aS)-tetrahydro-1H-pyrrolo[1,2-c][1,3]thiazol-3-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-((1S)-3-{(2Z)-2-[(7aR)-tetrahydro-1H-pyrrolo[1,2-c][1,3]thiazol-3-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cycloheptanecarboxamide;N-((1S)-3-{(2Z)-2-[(7aR)-tetrahydro-1H-pyrrolo[1,2-c][1,3]thiazol-3-ylidene]hydrazino}-2,3-dioxo-1-tetrahydro-2H-pyran-4-ylpropyl)cyclohexanecarboxamide;andN-(3-{(2Z)-2-[(7aR)-tetrahydro-1H-pyrrolo[1,2-c][1,3]thiazol-3-ylidene]hydrazino}-1-cyclohexyl-2,3-dioxopropyl)cycloheptanecarboxamide;or a pharmaceutically acceptable salt thereof.